Zsavage with Zmaul leader or Nihilus leader?

Under Zaul he can gain stealth and won't be able to be critically hit while stealthed. Which means he won't be cleansing himself as often. He's great with both leads, but I think he's even harder to deal with under a Nihilus lead. If he's under a zaul lead, you can shock/daze him while he's in stealth and just hammer out as much damage while he's unable to cleanse himself. You can't do that if he's under a Nihilus lead. (No matter what Zavage is still easily countered by a Nihilus lead so if you're also facing on Zavages having a nihilus lead is probably better).