Why are people dissing Tom Brady?

He has won what, 3 Super Bowls. Something that only few others have done. Elway has only won 2 and has started in what 5 in all. Brady has gotten it done. Why won't people give him a break? I'm talking about his on the field accomplishments. Please do not mention his baby's momma or anything like that. This has no relevance to Super Bowls.