Whomever said to let Arlovski get back into a groove then maybe him I agree with. I don't want anyone flipping out I don't think Arlovski (along with anyone else) could beat him right now, not Wand, not CroCop, no one. But if AA can get back on track, he's young, I think he's only 27 (i didn't feel like looking it up). I think that with his great striking and Sambo expertise that he would at least have an outside shot down the road, if he keeps improving.
Tim Sylvia I think would be an interesting matchup, I think he might be able to keep Fedor at bay for a little while, not forever, but for a while. The eventual outcome would be Fedor beating him, but I think Tim could fend him off for a while... That was tough to type, my dislike for Sylvia is well documented.
"Speed plus mass equals destruction" - Brock Lesnar