I really like how Roy and Ryu play. I mained Roy in Melee and while I understand he's kind of a Marth clone I like his Melee play style and it feels like they went more for that. Also I like Roy's FS too. If anyone has played the Sword of Seals (Binding Blade) you'll notice Roy's FS is the crit animation when he uses the Sword of Seals. However, I recall in Melee is over B made him change colors and that's his crit animation if he's not holding the Sword of Seals but they removed that in this one.
I like playing as Ryu. I also like how you can do stronger attacks by inserting the Street Fighter combo. Good thing the only characters I can do specials with are Ryu, Ken, and Gouken. So, I pretty much don't have to learn anything haha. I do wish dlc characters had custom specials though.