The survival build I think requires vengevine and rootwalla and probably should just play magic bullets in the main. I dont think adding hollow one really ups its power level from what it already did with just the rootwallas, mostly because they are just there to trigger things. If you can go off with lumberjack or other ramp you are probably favored to win regardless of the trigger creatures.
The burning inquiry build is far more interesting to me since you can mutilate an opponents hand with it, and who the hell is going to want to counter inquiry? It's a great way to force them to use missteps if you can capitalize on it.
Also, any build with survival really should run a singleton elvish spirit guide right? Just to power out some vengevine hands?