I think it is almost impossible for us to determine with 100 percent accuracy whether it is the Anti-OMD or Pro-OMD crowd in the majority in these considerations...personally I feel that the current disgruntled fans in regards to Amazing are of a mixed lot and that the main issue is that the character himself has been purposely made to look inferior to the new characters such as Miles,etc. This in turn is causing a massive dissatisfaction with Marvel as a whole who seem to believe in pushing the classic characters down in order to raise up the new ones. There are many reasons why people are unhappy with Amazing and Marvel in general at this moment in time and it's all generating a negative reaction. The big one is that Marvel refuses to listen to the fans...and that is really hurting their image and sells IMHO.
ASM is not at the Top Ten of the sells charts at all and is now down in the 20's, and it hasn't been in the Top Ten has since issue # 25, which was artificially boosted by variants and sells incentives...after that it has quickly and progressively kept falling and losing sales and readership. That 10 dollar cash grab turned a lot of people off the character that they had already determined was no longer of interest to them. I have seen this at my own local comic shop where many dropped Amazing from their pull lists after that stunt and they have not returned to the title.
I admit that even though many of us have an Anti-OMD bias and do not like the current direction of the title it can not hide the fact that Amazing is losing readers and sells at a disturbing rate that hints very strongly that the book is in trouble if numbers cannot be brought back up...and it must do it consistently and not just on an issue to issue basis with gimmicks and sells incentives on certain issues...then Marvel will have to make serious changes in the hopes of bringing disgruntled fans back to the book as quickly as possible.
So...whether one is Anti-OMD or Pro-OMD doesn't matter... the reality is that readers are turning away from the book in large numbers month to month and that something is wrong with the book.Not only are people turning away from Amazing but they also appear to be turning away from Marvel itself.