I would have to say, just for the sheer supreme beings, since Lay-Cool seem to think they are THE epitome of divas in WWE, I say bring back Lita and Trish since they had great chemistry when they were being good with each other. Have those two take on Lay-Cool, those two would chew up those two little girls and spit them out. Have a good old fashioned street fight. We know Trish and Lita are original hard core gals, and can fight with the rest of them, they've been in Chicago Streetfights, hardcore matches, etc. I think that would truly shut up Lay-Cool.
Another intense match, would be Big Show vs Andre the Giant. Have two of the biggest athletes compete against each other. Call it Battle of the Behemoths. The ring would have to be reinforced with extra beams, it would be a match for the decades.
Another great one would've been if Legacy was still around, to have Legacy (RKO, Ted Jr, and Cody) battle their fathers Bob Orton, Ted Sr, and Dusty Rhodes in a Generation Gap 6 man tag team for supremacy of the Real Legacy, and control of the group, and ownership of the Million Dollar Belt.
Those are really my thoughts, at least what have been floating around my head for a while in terms of dream matches.