Its a stalemate between Aqua and Ven. But if i honestly had to choose, It'd be Ventus. His command styles, commands, shotlock, and his all around normal attack and magic, are great and more appealing to me than Terra and Aqua. Besides:

 

WINGBLADE AND MULTIVORTEX FOR THE WIN!

Ventus hands down. 

I do say my brother playing as Terra and me as Ventus make an unbeatable team! Bwahahaha!

Sora(KH2,KHDDD), Ventus and Aqua. Riku's has always felt weird(especially in 3D) and Terra... eh. Roxas, he's like the KH1 Sora... Period.

Edited June 5, 201312 yr by gamerazor247

I loved aspects of all 3 of TAV tbf.

Edited June 5, 201312 yr by Flaming Lea

Aqua.  I decimate hordes of enemies all at once with her high-tier magic.  As long as no one touches me, I'm a person of mass destruction!

Aqua. Casting magic in BBS was just ridiculously fun for me.

I think that Aqua and Ven's styles were very similar to Sora's and Riku's. I was a huge fan of TErra's though for some reason. It's just that his attacks weren't very fast, but were stronger and more awesome to me. It was made even more amazing when he went into some of his drives and he had the same moves only with much greater speed. It's just perfection

I'll let you know in about a year. Hopefully Aqua.

Terra for me.  The way he just decimated enemies with combos like Zero Graviga leading up to Meteor.  It was just amazing.

Ventus for me personally 

gotta be aqua, she has a diverse range of magic and could make mine meat of any attack with barrior.

 

i love playing as terra fighting mysty and no heart so damn tough...

Aqua. But I agree.... DAT WINGBLADE!

I think I preferred Aqua in terms of her gameplay style.  I liked most of her commands, as well as her drives and additional controls.  Ventus would be a close second, however; his speed was incredible.