Woo hoo, a smart player using Wolf.
I personally like Marth for Wolf because he ***** Pikachu, and then DDD and Falco are actually managable with Marth. They may not be the best matchup against them... but hey, it's manageable now, and if you're smarter you should win xD
It really depends on whether you're looking for an advantaged matchup, or just a manageable one. Because if you were to second someone Snake, DDD could be trouble for you, if you were to use Falco, good luck with Pika, etc etc. You also have to keep in mind counterpicks, people could still counterpick you and you probably wouldn't wanna go back to Wolf, just in case they CP one of his very disadvantaged matchups, so I chose a character that does fairly well against everyone...Marth =D