They all suck ass. I think Ironman sucks the least ass, though. It has an occasionally interesting scientific article, and articles by people like Stuart McRobert. Muscle Mag is a joke, easily the worst IMO. basically one big advertisement for Muscle Tech, a bunch of ass shots, and the same crappy ghost-written "pro" routines every month. Flex, MD, and Muscle and Fiction fall somewhere in between these two. Occasionally, they have decent info but you need a pretty discerning eye.