Having seen him some at AAA, he's got the look of a Quad A guy to me. Fair at best power, no speed, and he's injury prone. Dime a dozen OF fantasy prospect at best, as he is not outstanding at anything and could be a liability playing every day.
Put it this way...I can understand why he's with the big club over Endy Chavez from a real baseball standpoint, but Endy is the better fantasy guy as he can at least steal a bunch of bases. That about says it all for Church as a roto-contributor.