I would guess that Rupp is the most hated runner in the NCAA. It seems that the main reasons (as others have stated) are as follows:
1. Rupp trains with Salazar and reaps the benefits of the Nike machine. He has every advantage and he uses those advantages to produce results. No other NCAA runner is afforded these advantages.
2. Rupp is cast as some sort of savior. Oregon and Nike have invested a lot of time into him and he has been deified, which many people think is an undeserved reputation.
3. Because Rupp has every advantage and the adoration of Oregon fans, people can't help but compare him to the Yankees (or any other hated franchise). Salazar's methods appear questionable to many as well. Ultimately this means that people look at Rupp as the polar opposite of the "Blue Collar Runner."
The Blue Collar Runner is the image that we (and by "we," I mean the majority of runners on this message board in their 20s or older who identify themselves as serious runners and actually pay attention to this sport) all try to embody. Maybe this is a holdover from 20th century amateurism or remnants of the popular mythology of "Rocky" and "Once A Runner." I'm not sure. However, it seems to me that the "Blue Collar Runner," like the cowboy, is a myth.
Rupp's reputation on this board may be deserved. It may be undeserved (probably somewhere in the middle). The standards that he is held to are unfair, though. We expect him to be some kind of hard-nosed, independent runner. That's not the method that he's employed to get where he is and we shouldn't expect him to change a formula that's working. On the other hand, we should expect him to comply with NCAA regulations and we should recognize that even with all of his immense talent, his is one helluva lucky situation.