After thinking long and hard, what was the last good event from Marvel? I'm talking a crossover with its own mini-series independent from ongoing series. I've enjoyed a lot of ongoing books and some of their crossover arcs, but really, I can't think of the last full fledged event I actually enjoyed.
I have hopes Hickman can deliver with Infinity based on his work with SHIELD and Fantastic Four/FF. I just fear that Bendis will somehow have his hands in this given his role with the X-Franchises and Guardians of the Galaxy.
Annihilation, Conquest, WoK and TI ranged from pretty good to awesome. (Conquest is definitely the weakest but it's still better than a lot of Earth events, and still had some great moments).
Would Messiah Complex/Second Coming count by this definition? They didn't have a mini but they were both huge events that spanned nearly every X-book. If so then those as well.
The amount of decompression in most of the events is something which stands against a lot of them, imo at least. House of M, Fear Secret Invasion, Fear Itself. AvX and Age of Ultron so far have all dragged on for too long and had issues where not a lot of happened and suffered for it. At least in the X-overs, despite the fact they went on for 10-12 issues, there was a lot happening in all of them and they never lost their momentum. Mean while Age of Ultron is 7 issues in and Ultron hasn't appeared...
I always felt that Civil War was a good idea and has some nice moments, but suffers from the fact that a) Millar writes both Cap and Tony as unlikeable jerkasses and b) There was no real ambiguity as to who was right, one side had Captain America and the other recruited mass murderers, jailed people without trial and made a murderous clone of Thor.
annihilation and spider island. Bendis has horrible pacing in his events. Either nothing happens until the final issue or everything happens in the first two and it drags on for several issues.