I knew they were not his best
Well, I'll have to agree that Elvis wasn't an outstanding actor, but I guess one's appreciation of the films depend to a large degree if one likes the type of movies where the lead actor bursts out in song every now and then.That said I do believe that there are films that are generally thought of as good, like King Creole or Flaming Star.
Flaming Star is one of my favorites.
I never saw any of the brat pack movies (unless Ferris Bueller's Day Off counts, but I don't think it does), because they just didn't seem to be my kind of movies.