2016 I don't know if it's up there with the best but it should be mentioned as just the last season that the Pac was actually worth a shit with one team making the playoffs (without any controversy at all) and another team winning a rose bowl against a good team, and a 2-3 other 10 win teams.
Overall I generally liked watching the Pete USC teams. They were legitimately impressive (not running some scheme or shit) and dominated out of conference. That game against Cal and Rodgers was an all timer. Washington was just ass.
Thought about 2016. UW to the CFP (last Pac-12 team). All time Rose Bowl fun to watch with Pac-12 winning. Complete implosion by Oregon. It's just getting beaten down by USC in Seattle stings. I liked watching Darnold other than against UW. It's too bad McCaffrey was banged up most of the year.
2018 is interesting. I liked Minshew but stealing the conference from the Coug at the end was fun. The conference sucked. USC imploded. Loses points for Oregon looking like they somehow wouldn't be terrible under Crisco.