wolverine when he gets pissed off is really dangerous and so is colossus, but:
1)first of all, i said normal astonishing x-men (not pissed) versus pissed off Thing.
2)if it was just pissed off Colossus and pissed off wolvie vs pissed off thing, thing would still win, but not if the whole team is pissed, cuz the most dangerous of the team when he gets pissed off is definitely cyke cuz when he takes off his visor he has the power to blow away mountains.
anyway, i think this would be really close but at the end Thing would win, mostly because he has much more heart than probly anyone in Marvel or DC. And i no he can easily withstand a lightning bolt cuz he even withstood Ghost Riders Hellfire or wutever its called on one occasion which has even knocked out the Hulk!
colossus vs thing alone is a tough battle. This magical "pissed of thing" certainly wouldnt take colossus in 2 or 3, heart or no heart, no way, colossus is (slightly) stronger than thing and more durable. read the thing vs colossus thread....
and cyclops can easily penetrate thing if he really wants to....