Not Ward because another loss would hurt is legacy. Move up to light welter a clear out that division. i.e. Stevenson, Cleverly, Hopkins etc. Becoming a 2 weight champion and potentially lineal champion will no doubt improve his legacy!
Hopefully he doesn't fight Hopkins, he would gain ZERO from that fight. Win - "you beat an old man" Lose - "you lost to an old man"
Potential stars are no good for froch at this stage, if he wins it wouldn't make his legacy any greater and if he lost it would destroy his legacy
Ward or Hopkins. Beating Hopkins at for a title at Light Heavy would do more for his legacy than a Ward rematch.
Go for Stiglitz's title Go for a LHW title - There is a great opportunity to be lineal in that division by fighting Stevenson Go for Ward again - I don't think he'll win but another loss to Ward at the end of his career won't affect his legacy too much.