I've tried a lot of mods with savage, and I've found him to be the strongest both individually and as a teammate with speed. Yes, he already gains TM, but the more often he goes, the more often he'll cleanse and regain whatever health he may have lost... not to mention, get to Overpower faster.
CC and CD are the sets you want, but like with almost every other toon, you want as much speed as possible.