Just some random thoughts and opinions to go along with this thread:
I'm what one would consider a Melvins fanboy. Some of their stuff that I couldn't really get into at the time (Big Biz trilogy, Bootlicker) I listened to over and over and developed an appreciation for it. I guess that's my keyword for this post: appreciation. PAT is far from perfect, too many covers, etc., but I appreciate it because it comes from the Melvins and their allies.
Shit, I'm just glad they don't release the same album time after time like AC/DC or Judas Priest do. On PAT, my favorites are Flamboyant Duck and Breathe. I'm glad they did the Butthole covers because it was a chance for me to get into the Surfers (I only previously knew Electric Larryland really).
I've only seen Melvins four times live (in two days it will be five!), so I've only seen Pinkus and Steve. I like Steve's jumping around and his energy onstage, but it does get old after a while. I prefer Pinkus' style of hanging back and plucking away with his beer within easy reach on a cinder block (at least at the Texas shows he does that).
I thought the Death album was a masterpiece (notice I didn't say AWWLAD). Melvins have lots of misses and things that don't work on their albums -- Barcelonian Horseshoe Pit comes to mind -- but I will always love and appreciate what they do because they're the fuckin' Melvins. I try to see those tracks as soundscapes and not just "songs."
I think their best album this decade is Hold It In (Yes, even though I said Death was a masterpiece). HII has the raw elements that I love. Pinkus' singing style sounds like a pissed off Buzz, in a good way.
By the way, does anyone else make Melvins shows into mini holidays from work? I'm taking one day off as a travel day (only 2 hour drive) and to see the show and another day to recover.
If Melvins seem in a rut or stuck in dad rock or whatever, remember, it's a pendulum. Sooner or later they'll be working with other people, and that pendulum will swing again. Just enjoy the music and have fun. That's what I do.