Before AvX, I was buying almost every Marvel books.
After AvX, I found myself buying only 3 ... and I'm down to 2 since Superior went back to Amazing.
To this day, I still don't know who won AvX but I can tell you who (in my case) lost it and it's Marvel.
I even did something I had never done before, I bought some DC books. That may not be a big deal for most of you but apart from one or two Spawn comics I bought when I was fifteen (it was new then), I never "had an affair" with any other comics publisher. I was a "Marvel guy".
I went on A..z.. (I'm unsure if I can use the name of the compagny here), saw Batman "the Court of Owls" TBP in a "special edition" with a mask and gave DC my money. I certainly will do the same with "Death of the Family".
If Marvel wants to sell me "Original Sins" TPB, I strongly encourage them to add the "Watcher's Eye" to the comics (I most likely won't buy it on a monthly basis).
Today, I buy more DC/Image/Boom/Top Cow ... 's comics than I do Marvel's. I feel sad about it though.