I am certainly in favor of difficult games (Avatar is one of my favorite Sterns and it can be pretty brutal.) However Avatar has few 'feeds' where successful shots put you directly in danger. TWD is so very close in my mind... great shot variety, lots to do... but so many shots feed into the pops and a dead ball coming out of the pops drains at a very high percentage. It forces you to slide-save half the freakin' time. I think Stern could put out an optional right hand side ball guide that changes the ball trajectory out of the pops. At this point I'd rather that exit feed into the slings than into the middle, that's how crazy that feed can be.
Otherwise, the rest of the game I have no complaints. Even the jailhouse shot which can SDTM isn't terrible, same thing on monger/Iron Man or Sparky. Ramps are awesome on this, shots are tight. Maybe it's like X-Men where the community will 'fix' a frustrating part of gameplay with a mod like the Wolverine mod?