I got turned off from D&D due to some crap DMs. Not an excuse I know, but Ive run itno a lot more terrible GMs from the Dungeons and dragons side than I usually do with most other games Ive played like T2K, Traveller, Paranoia, Rifts, Gurps, 3-16, Savage Worlds....the list goes on. Ive noticed that most of the same GMs who stuck to D&D so much also seemed to flock to Pathfinder. Generally I look to see what that crowd is doing and go the other way.
...And T2013 isnt all that bad. In fact Im getting rather attached to Reflex