Hard to say - I do like Revolver a bit more than Peppers. Pet Sounds is a sonic trip, but I didn't realize that until I got a bit older. It wasn't hip enough for me when I was younger and the system I had at the time wasn't up to the more delicate nuances of the recording.

I think Pet Sounds requires a more critical ear than Sgt. Peppers. Sgt Peppers is more immidiately accessible, it sounded good at a beach party, through 8-inch speakers connected to my 1963 Rambler station wagon's 8-track. WIth a whopping 10 watt booster amp, lol. How times have changed. Pet Sounds, OTOH, is best appreciated on a good home system, on a comfortable couch with a glass of wime and a doobie. The vocal harmonies are stunning, but then again when weren't the Beach Boys vocally stunning?

The legacy of both recordings is impressive. The fact they were done on 4-track recorders is amazing. I think they mark a high point in late 60's music, along with Electric Ladyland (now there's a sonic trip) and a host of other LPs.

I'd be interested to know what you think of Smile.