The mightiest bass sound of all history. You can still hear it echoing through time to this day. A lot of people say this so it kind of loses meaning, but he really was one of the reasons I picked up a bass and kept it going in the first place.
Also the new bass Dean made after him looks sick. Too bad it's over 5k. http://www.deanguitars.com/query?upc=819998179762
I saw the Live 8 performance that Roger and Pete did after John passed. First live performance without him and I have to admit I broke down watching it. It wasn't the same and didn't sound the same. He had that much impact on the sound of that band.