Some opinions I've formed about music and gear, two of my favorite things, that are probably unpopular. Please take in the spirit of the thread. Normally I wouldn't post them.
MUSIC
I agree with what Keith Richards said about the Grateful Dead. They are boring, no energy, and plod and plod along without going anywhere. What a lightweight band!
Phil Collins and Genesis are almost impossible to listen to. They would have been easy to forget about forever if it wasn't for classic rock stations.
Kid Rock might be the least talented person who has ever gotten famous. He's the ultimate poser.
Billy Joel is a narcissist. Listen to the lyrics, every song is about him pumping himself up and putting other people down. Unfortunately, a lot of those songs have catchy melodies which is why he sold so many records.
GEAR
I'm not sure if anyone has ever substantially improved on the acoustic suspension speaker. Sealed cabinets sound better than ported ones.
Best vintage gear based on industrial design and sound - early to mid 70s Marantz receivers and Sansui/Kenwood integrateds from the same era. They all deserve the hype much more than McIntosh does.
The Pioneer SX receivers from the 70s look blingy with too many buttons. They remind me of a poorly designed jukebox. The big guy, the SX-1980, was the worst offender. Great marketing and distribution campaign, but ugly gear.
The ugliest gear of all time, on average, is probably Carver.
I grew up with vinyl and have a lot of records, but the CD was a major technological advance. A junky $10 CD changer which you can find in any thrift store will sound better than any turntable you can buy, no much how much money you spend on the plinth or the cartridge or how much time you spend cleaning your records. Plus, CDs have the ability of being able to go directly to a certain track and you don't have to flip them over.
Speakers make more difference in the sound than anything. Then the source, then the preamp, then the amp itself. Cables make very little difference - attenuation at the audio frequencies is almost nothing, so unless you have a ground loop or shielding problem don't worry about cables. Ironically, sound differences between amps and cables get discussed endlessly.
There, I've said it!