Well, I love FF characters and now that they've already launched Dissidia 012 I wanna talk about which characters were missing in my opinion. So here they are:
FFI - Black Mage (it would be cool to have a Character wearing a traditional Black Mage costume in my opinion....)
FFIV - Palom and Porom ( Play with two characters at the same time would be really cool )
FFVI - Setzer (throwing cards, darts and stuff....!!!!)
Shadow ( Dissidia needs a ninja! definitely!!)
Mog (Well.....seems strange to have a Moggle fighting with the others but......I really love Mog!)
FFVII - Yuffie ( woooow!!!She would be sooooo greeaaat in this game With her big Shuriken )
Vincent ( He's one of my favorites. )
FFVIII - Seifer ( Can you imagine?! Ultimecia and Seifer Fighting Squall??! OMG fucking awesome! )
Zell ( Zell is one of my favorites too. Zell and Tifa fighting would be a great Battle!!! )
FFIX - Freya ( I like Freya )
FFIX - Vivi ( So you don't need FFI Black Mage hehe! And Vivi is cool too)
FFX - Rikku ( Everyone wants Auron but I'd rather see Rikku than Auron in this game )
FFXII - Bathier ( Balthier is soooooo cool! I would love to see him fighting with Vincent.......!!!)
Well that's it. I hope to see some of these characters in Dissidia someday! Let's Pray hehe!!!!