So off-topic but I thought I'd shove this here in case anyone else wants to join in with me/have a look. :3
I've been meaning to do this for a while but I FINALLY decided on my teams for each Gen. And I have a few extra little rules for myself too...
Rules:
1. Must have one shiny per team.
2. Must have one Pokemon to use as a Mega per team.
3. Must use a starter Pokemon in each team.
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Gen 1 Team
Charizard (Mega): Charizard has always been a huge favourite of mine and with the recent addition of the Y form I fell in love all over again.
Raichu: Always loved Pikachu, always loved Raichu too.
Ninetales (Shiny): Again, another favourite, always has been and Vulpix/Ninetales was my first ever shiny.
Persian: Never a *huge* favourite of mine but I have a thing for cat Pokemon and I love how classy Persian happens to be.
Arcanine: I pretty much always had one in my team, plus I love the concept that Arcanine was once going to be Legendary Pokemon.
Eevee: I love all Eeveelutions but from this Gen, Eevee herself was my favourite. :3
Gen 2 Team
Meganium: The only Gen where I love all the starters. I used to be Typhlosion as a kid but these days I have a preference for Meganium.
Espeon: I felt obligated really to include an Eeveelution and Espeon is by far my favourite out of Espeon and Umbreon. Before Sylveon, Espeon was winning as favourite Eeveelution.
Sneasel (Shiny): I have always had a soft spot for Sneasel, especially it's shiny form. I love pink. x'D
Houndoom (Mega): As everyone knows, Houndoom is awesome!
Suicune: My one and only Legendary that gets a place on any of my Gen teams because of my massive preference for it. I adore Suicune.
Tyranitar: I've only recently started warming up to Tyranitar, previously I was not 'supposed' to like him due to my best friend's Tyranitar's rivalry towards my Charizard. xD
Gen 3 Team
Sceptile: I *always* picked Sceptile. Always. xD
Mightyena (Shiny): Same reasoning as Sneasel, always had a soft spot for this one, especially in shiny form.
Delcatty: Once again, I just have a huge bias towards cat Pokemon. They're the best. :3
Manectric: This team is very cat/dog based, huh? There was plenty of them in this Gen and Manectric to me just looks so badass. Electric dog? Yes plz.
Zangoose: I remember liking this Pokemon a lot as a child and never really could figure out why. It's still the same to me now.
Absol (Mega): Always liked Absol, ADORED it when I saw it's Mega form!
Gen 4 Team
Torterra: I always struggled with this Gen for it's starters, originally I liked none of them, but Torterra warmed up to me eventually.
Luxray: <insert comment about cat Pokemon here>
Floatzel: I loveloveLOVE Floatzel, definitely an all time favourite Pokemon for me.
Purugly (Shiny): <insert yet again another comment about cat Pokemon here> Also Purugly reminds me of my British Shorthair, Ruby. xD
Lucario (Mega): Thanks to Falcon, I went from not really giving a damn about Lucario to absolutely adoring it.
Leafeon: Once again I feel obligated to use an Eeveelution and Leafeon always wins this Gen. :3
Gen 5 Team
Samurott: Originally I went with Snivy before knowing what any of them evolved into. I still like Serperior but when I saw Samurott, I regretted not picking up an Oshawott.
Liepard: Once again... cat Pokemon, except Liepard is one of my favourites. I love leopards. :3
Audino (Mega): I always did like Audino but never enough to have one on my team... until I saw it's recent Mega form, that is.
Archeops: The first and only (until Tyrantrum came along xD) fossil Pokemon I've picked. I love this derpy dinosaur bird. :3
Sawsbuck (Winter Form): I... don't actually know if I can have the Winter form in X. I hope I can because I love it a lot. >:
Hydreigon (Shiny): Thanks to Falcon I've achieved my dream of having a shiny Hydreigon! :3
Gen 6 Team (Obviously no Mega for this Gen)
Braixen: Love Fennekin, love Braixen, meh about Delphox. It just really didn't click for me so I kept my Fennekin as a Braixen.
Pyroar (Female): Because for the millionth time, CATS.
Meowstic (Male): ... cats. Seriously though, Espurr is hard to ignore. I had to pick one up.
Tyrantrum: I've always been a big fan of dinosaurs, at my school I was known as 'the dinosaur girl'. So this to me was just THE BEST THING EVER.
Sylveon (Shiny): Doubt I need to explain my love of Sylveon to anyone, but it is by far my favourite Pokemon. ♥
Noivern: Because as Falcon said, bats + wyverns = OH YES PLEASE.
(All teams past here can ignore the one shiny/one Mega/starter rule, some for obvious reasons.)
All Legends Team
Entei: The Legendary Beasts are my favourite trio and favourite Legendaries of all time, Entei only JUST coming into second place behind Suicune.
Suicune: Already explained this one. My all time favourite Legendary. I fell awful for leaving Raikou out but I wanted room for other favourite Legendaries of mine.
Shaymin (Sky Forme): Shaymin is so cute oh my goodness! And it's Skye Forme kicks major butt.
Virizion (Shiny): A dream shiny of mine, Virizion is my favourite of the Swords of Justice.
Reshiram: Far too elegant and beautiful for me not to love, Reshiram really made me regret picking up a copy of White instead of Black!
Keldeo (Resolute Form): Okay I'm not going to lie, I love My Little Pony, and Keldeo reminds me of a pony. xD I've always liked Keldeo though and his movie is one of my favourites!
Cat Pokemon Team (One from each Gen)
Persian: Persian is a big favourite cat Pokemon of mine, I especially loved the one in the anime that Giovanni has.
Espeon: While probably not classified as an actual cat Pokemon, no one can deny it looks and acts like one. Espeon was once my favourite Pokemon so she deserves a spot here.
Delcatty: I remember Skitty being SO HARD to find for some reason in Ruby. I always spent ages looking for one because I had to have one on my team!
Purugly (Shiny): Toss up between Luxray and Purugly but Purugly wins, she reminds me of my British Blue cat!
Liepard: Probably my favourite cat Pokemon of all, I adore Liepard's grace and elegance and, since my fursona is a snow leopard, I've always loved leopards. :3
Pyroar (Female): I loved the female Pyroar when I saw her, she reminds me of one of the female lions from the Lion King.
It was hard to pick between Atramedes and Tyra buuuuut I decided I'll end up having another Charizard Y, a regular one, anyway. xD Ghidorah still needs to be leveled too. D: I'll probably do that when I make the actual team itself. AND MEGA TYRANTRUM WOULD BE AWESOME. I'm hugely fond of Mega Audino though which is why I picked her. :3
<--- Me dying of curiosity!
my favorite minor legend trio will always be the johto beasts. I also really like the therian formes. Seeing coballions feet as boots now has made me appreciate that trio even more though. That and without them there'd be no keldeo and I LOVE keldeo! 
Also I am super surprised you don't have Reshiram in your Gen 5 team Falcon. :O I also noticed you did the same thing as me though and tried to pick a sprite from each Gen. I feel like my Gen 6 sprite is a little bit different next to all the others but I wanted a more feminine style because of the more feminine Pokemon I had in that team.
