By feats, Sentinel. What has Keeper actually done, anyway?
By potential, Keeper.
By forum rep, Keeper. Leads me to believe he probably does have some good feats....and can also claim all of 616 Surfer's feats as well (to a point at least, since their histories might diverge at some point...I'm not versed on the finer points of his continuity), since he's a future version of 616.