There's a reason you hear about Owens the most... He's the most vocal publicly, and teams he's been on have all thought he was worth the trouble. How many changed their tune though?
He's most vocal publicly? He speaks at press conferences just like everybody else. The reason you think he's publicly vocal is that the media covers everything he has to say. There are hours upon hours of post game PC coverage each week. Wee only see a small portion of this, but you can guarantee that we'll see anything Owens has to say. The guy wants to win and gets upset when the team is not winning - wow, what a threat to the team.
Giants fans, keep talking the talk because you're not going anywhere without some upgrades at receiver.