If that is what he meant; then yeah It would prolly be a one-sided slaughterfest for the VAST majority, I'd like to believe I'd last a bit, but I've never been trained in real swordsmanship so the result would be my own demise. I would imagine the same of everyone else.
Well deadpool vs current Emps would likily go deadpool, given that the corpse god can't move and deadpool has no mind to shatter, otherwise, Emps is totally OP and would merk ol deady. However, deadpool would have to fight through a planet full of guards regardless, or sneak past. Either way he's testing the limits of the regen factor, and any notion of conceivability.
First of all, that's a pretty blatant no-limits fallacy. What's the strongest attack he's come back from? Second of all, even if dropping him in a star/black hole/the Warp doesn't kill him, he can no longer do jack-shit to the GEoM if that happens, so it's still a win for Emps.