The Pilot Sport AS3 on my Mercedes have been good.
Great grip, wet or dry. Suck less in snow than summer tires, but they're not good in snow, not even fair, they just suck less...
They've worn pretty quickly. Doubt I'll even get 30K out of them. More likely to get 25K. But I reckon that it's my fault. They're on a 500+ HP big sedan that gets cornered hard (when I can) and has the power to spin them (with traction control off) easily.
They're noisy now. The result of feathering wear - the alignment is good, and I suspect the hard cornering (which I really can't resist- it's remarkably capable with Active Body Control that keeps it flat at ludicrous speed) is at fault. So, again, that's my fault.
I plan to buy 4 tires this fall (after I've paid college tuition for my son, and we've paid for my step-daughter's wedding). I think I will get the AS3+ this time.
They really do perform remarkably well for an all season tire.