My favorite by far are the Bosselman Pilots.
I like Petro's in general and try to plans my breaks at them if possible. I like the one in Kingman, AZ. Also, the best Iron Skillet I ate at was the Petro right outside Spokanne, WA. Not to mention some nice eye candy waiting on me
Favorite TA is the one in Albert Lea, MN. I believe they are the nicest showers I've seen so far. I also like the TA in Amarillo.
Really don't care for the Love's and Pilots. There are nice ones out there but none worth mentioning.