I hear what you're saying, there's some great stuff in 2 for sure. I'm not even a western fan at all (3:10 to Yuma remake, There Will Be Blood & Assassination of Jesse James the exceptions) and just was more satisfied with 3 as a whole. The one thing I DIDN'T fucking like at all though, was the flying time machine train at the end.... Nonsense! Nothing beats the DeLorean!
As ridiculous as this may sound, I felt like part 3 was more "believable" than part 2. If ONLY because Fox wasn't playing multiple characters in the 3rd one.