I did a thread like this in the Marvel forums and wanted to see what a Spider-Man version would look like. Now with Spider-Man it's a little different as there aren't actually that many Spider-Man crossovers, so I expanded it to event storylines within the series as well. I limited it to stories that were 5 parts or longer (so no Master Planner or Jean DeWolf). I put together a list of 14 (plus 'other') as that is the maximum amount I can put in a poll. If I missed one of your favorites, list it in a reply as I am very curious what stories y'all liked most. You can vote for multiple stories as well, you don't have to pick a number one favorite. I used Marvel's Wiki on crossover events to help with the list and tried to include new and old stories.

1. The Owl/Octopus War
2. Kravens Last Hunt
3. Return of the Sinister Six
4. Maximum Carnage
5. Clone Saga
6. Back in Black
7. New Ways to Die
8. Spider Island
9. Ends of the Earth
10. Spider-Men
11. Spider-Verse
12. The Clone Conspiracy
13. Hunted
14. Absolute Carnage
15. Other

My favorite is probably Spider Island which I think is probably Slott's peak achievement (along with Superior Spider-Man). I don't love Kraven's Last Hunt as everyone else.