80s had better crowds and setting, more volume due to house shows being taped (although 90s handhelds still have a few gems), and a deeper talent roster. However, 90s peaked higher both in terms of output and style so I chose 90s. Not unlike what others have said so far.
Sure but you can keep going with 90s feuds too: Bret/Bulldog, Bret/Flair, Shawn/Razor, Bret/Diesel, Shawn/Mankind, Bret/Backlund, Bret/Shawn, Bret/Yoko, Bret/Lawler, Shawn/Diesel, etc.