Apparently Loeb's work on Hulk is pretty awful too.
Ultimatum had some decent ideas, and some of the deaths were needed/interesting, but overall it was terrible. Magneto dying was a good thing, he's overused and after what he did it was the only way to go. I don't understand how he could use magnetism to kill all wolverine's cells though. Wolverine is so overused so I didn't mind seeing him go, but until I read Ultimate X-men requiem, I thought they were gonna go Ultimate Cable with him, which would have been cool.
Janet and Hank's deaths were stupid. They managed to make Dazzler cool then they killed her. Syndicate was one of the like 2 new characters they made up for the Ultimate U and they kill him. Nightcrawler was a terrible death, the man can effing teleport, how does he get killed by a wave? Cyclops I don't mind dying, I didn't like the method of his death. Doom's death was lame and he shouldn't even be in the freaking universe anyway.