Personally, I'm going with Vs, mostly due to it being the album they made that I listened to the most. I am a big fan of their live albums, I listen to them all the time online as well.
Don't listen to much Pearl Jam, but I do have a burned copy of Ten that I've listened to a few times. It's pretty good so I'll go with that.
Ten is a close second to VS, IMO.
Also a big fan of No Code, Yield, and Vitalogy. Binaurel and Riot Act didn't capture me that much, but they are worth listening to. Lost Dogs has some good stuff too.
TheLegendErnieRowe.... we hardly knew you... :(