Originally posted by JakeTheBank
They have given Ultron a serious upgrade.Fem Ultron was a step above Ultron Unlimited/"Classic" Ultron. Phalanx Ultron was, too. AoU Ultron even more.
Currently, Ultron is capable of tanking a fully charged all out Mjolnir strike without being damaged and BFRed himself because he felt he wasn't ready to take on all of the Avengers at once. When Ultron returns, presumably after AvX, he's going to be a beast.
Primary adamantium is still primary adamantium, so unless the last Ultron had better body armor than primary adamantium... you see where this is going right? The Hulk has the feat under his belt, so arguing whether or not he can smash Ultron has already been decided on panel. Thor may not have been going all out or the Hulk might just have more hitting power.
Also this happens to be busiek's Ultron.