I have archangel, i'm trying hard for one of the con pieces and im Tempted to get wolverine and caliban to set up a horsemen team (if I can't get two horsemen con pieces). So do you guys think they could work out?

I played against a 500 point Pestilence, Archangel, Hulk as War and Wolverine as Death horsemen team with the ATA a couple of weeks ago. It was very effective and went 3-0. They have a lot of high defense and damage reducers, Pestilence's poison is extremely dangerous, and Hulk can wreck some figures.

Veteran Polaris from the Mutant Mayhem set is pretty good for tk.
I played a team of 500 point Apocalypse, Polaris, GSX Hulk, Death Wolverine and Archangel. It did alright, but couldn't hold up against the new Galactus.