Red Mosquito

I think Ten sounds the most dated by far. Even though it ushered in the grunge era it still clearly has one foot in the GNR/80's metal world. I will say that by toning down the reverb in Ten Redux it sounds a lot fresher.

Musically I don't feel any other album has "aged".

Riot Act sounds pretty dated because of all the political references. That's the problem with being too specific in protest music.
Eddie would have been wise to go the Dylan route instead of the Rage Against the Machine route with his lyrics.

Yield has aged the best hands down. That album could have been released at almost any point in PJ's history and it would sound right. Timeless.

I feel that Yield is the most timeless and can keep my coming back repeatedly. The only skip-able track is Pilate.

Vs. has held it own for me because of my personal love for the album, along with the diversity of moods. Glorified G or Leash may get skipped now and then.

Riot Act continues to decline on my spectrum of appreciation. There are perhaps only two songs that pull me back to that album. Whenever I think of it, what comes to mind is "slow, brooding, and murky"