My favorite character to play as so far is Tadakatsu Honda, that guy is a ****ing juggernaut. I know he may not be new to most of you, but, as someone who has never played Samurai Warriors Xtreme Legends, he's still very much new to me. I also really enjoyed playing as Ieyasu Tokugawa, tearing up peons with cannon fire is way too much fun.
I like Fuuma, but I dunno, something about playing as him made it feel like a chore to get levels done. I didn't really feel like I was having a whole lot of fun playing as him.. *shrugs* I dunno, I might give him a few more chances I suppose.