When I said “Cruz and Trump beat each other up so badly”, it was non-specific. I should clarify that this is what I believe the GOPe wants to happen.
That being said, I think Trump is more likely to emerge a victor in any slugfest because “duking it out” is in Trump’s wheelhouse. This is why I think he would beat Hillary in a general. For all that’s been thrown at him in the primary, he’s still standing.