Adamantium Sabretooth is what like class 50 with a crazy healing factor and unbreakable bones who be hard to put down. Agent Zero can effect any healing abilities that Morlun might have and he has adamantium metal weapons. Omega Red has been upgraded to unknown strength level plus he has the spores to work along with Agent Zero abilities to effect healing factors. I think this would be a tough fight.
Threads like those are just pointless, I stated several times in Morlun threads that he has never shown an upper limit and was never actually bested in battle. Of course that means by no way that Morlun doesn't have any upper limits but everything he has shown so far he did with utter ease. So there would be pure speculation how he would fare against folks like Thor etc. He lacks the absolute high showings that place him in their ranks (at least when it comes to people he actually fought powerwise), yet the stuff he did, he did so easily that I don't see Thor or Hulk replicating it (No selling Wakanda).
Can I see Morlun rape Thor? Yes I could.
Do I want to see him rape Thor? Absolutely.
Does that mean he would by what he displayed so far? Not really, or better said nobody knows
Don't know much about Phoenix though, but I guess you get my point.