Hm, I think I'll make this easier on myself and just go by how I liked their big events. (note I stopped reading comics a while ago, although as far as I know the only big event I missed from both companies is the Age of Ultron thing.)
Off the top of my head Marvel had Dark Reign, World War Hulk, Civil War, House of M, Siege, Fear Itself, Avengers vs. X-Men, Spider-Island, etc etc etc. Most(but not all) of these were pretty good, and I had fun reading them.
DC had Infinite Crisis, 52, 1 year later, Amazons Attack, Countdown to final crisis, Final Crisis, Blackest Night, Brightest Day, Flashpoint, etc etc etc. Most of these on the other hand were terrible to meh, with Blackest Night imo being the only real bright spot.(pun intended)
So yeah, Marvel wins just based on that.