You ask ANY fan of any other team who they hate the most, and 8 out of every 10 will say Dallas.
For the same reason that 8 out of 10 MLB folks will say the Yankees.
For the same reason that 8 out of 10 NASCAR folks will say Jeff Gordon.
For the same reason that 8 out of 10 NBA folks will say the Lakers or Celtics.
It's the obvious reason that will go unsaid at this point.................
It's a funny thing though. Everyone who hates Dallas does so out of envy.
The teams WE hate, it's usually a team and fans who desire to be Dallas and dream to be Dallas, but could NEVER be the Cowboys! We don't hate on the Steelers or the Niners as much as we hate on the Eagles. WE may not like it, but we give credit where credit is due. I don't "hate" the Skins or Giants as much as the Eagles, because those two have earned some modicum of begrudged respect. The Steelers, Patriots and Niners..........I don't like 'em, but you sound like an idiot in public if you don't fess up to their great years.
Personally, my "hate" list is a list of teams who suck, they beat Dallas a few times, and carry on like they just won the SB about it.
The Eagles are, by far, at the very top of this list.
New Orleans is now a charter member because of that game a few years back, the year of all the "Katrina/We're all Saints fans now" crap. They beat us and you'd swear the just won their 5th ring or something.
I can't stand Seattle either. The Cardinals are coming close to joining the club too. They're awful mouthy and full of themselves for being, so far, a once-every-century fluke.
Any loser franchise who circles their Cowboy game on their schedule as their "Super Bowl", I got no use for. They could go 3-13, and if they beat Dallas you never hear the end of it...................