In most fighters, I only keep 5 or less (depending on the fighting controls) of "mains" So I know I can at least polish them.
Games like Naruto Generations with 70+ characters messes with me because there is little variation in movesets and if there's a person that can be abused like no tomorrow (Deidara, Chiyo, Pain etc.) It usually will, giving me a less than enjoyable experience.
Speaking of fighters....
I got a good rom of KOF 2002