I personally don't see how Reno Jackson is better than Brann+healbot unless you are playing a fatigue deck where you don't need to design your deck around it.
While Reno requires 1 less card to play, unless you design a card specifically around him it's hard to get it to activate (or playing a deck that will go to or near fatigue). And a 16 heal is near as good in most cases as what Reno can do.