Who would you think is the greatest fighting game character ever? I would personally go for Terry Boggard, not only for his design and moves but the sheer depth that was given to him story wise by SNK. A close second would be Ryu, just because he is the original fighter.
I always preferred the AKI WWF games, but for a SD game this is very very good. Hell in a cell has been hugely revamped and three on three elimination tag matches are quite possibly the best thing on the game. Story mode still could be better though.