I think that people are forgetting all of the instances in which prime has taken on several teams of top tiers while weakened. He slaps around heralds like they're nothing. The only reason why they job prime to conner is for literary symmetry's sake imo, unless there is some other underlying reason that they have not yet revealed.
Keep in mind that prime had spent god knows how long in the speed force (enough time for him to need the solar suit) in the instance above. So I don't see any reason why an invisible punch from the mm wouldn't send him or most others flying if they didn't expect it.
I don't think that I need to reference all of his mid range and high feats because I think that they're posted all over the forum. My point is that a couple of low feats don't justify bringing down a character's overall durability if it is backed by numerous impressive mid range and high ones. That is why I try not to bring u low feats when arguing them, only feats that match or exceed those of the character in question.
As for prime being hurt by hulk. I don't doubt that prime would say "OUCH!!! That really really hurts!!" but in all honesty, when hasn't he unless magic was involved? I think that it is in his character to whine and complain, even when he's not really that hurt. A good reference would be in the beginning of sc when pretty much every legitimate dc team was beating on him. They were giving it their all, if fact, by the time the sun came out, they were just as torn up as he was. Despite all of this, all prime had to say was "That hurts!".... every top tier that matters is beating you down.... and you say "That hurts".... really? Also, again, keep in mind that he was drastically weakened at this point as well.
I'm not saying that wwh's punches wouldn't do anything to him, I'm just trying to be reasonable here, and imo a wwh punch (even with the power gem) is not > alan scott, wonder woman, martian manhunter, powergirl, supergirl, starman, wonder girl, superman, etc (I'm going to stop, because the list gets ridiculous) dog-piling and whaling on you at the same time. This is not to say that it wouldn't affect him or knock him back, but if he took all of that while weakened (and then again afterward, and then again in lo3w), then I'm pretty sure he'll be able to stick it out. He wouldn't tank it, but it wouldn't be a deal breaker.
So seeing as he's not sitting here and letting himself get hit, and has speed comparable at least to a low to mid range flash, as well as other ridiculous physical stats, I'm pretty sure prime wins this.