[DustyPorViva]

Content... I actually could care less about a server being unique(though it does annoy me that people actually go through the trouble of designing a whole tileset for their server, only for it to look almost exactly like anothers), as long as it has content that is fun I'll enjoy it. Also, newbie-friendliness. I hate Era for the sole fact any time I log on, I'm immediately hunted down by PKers. I got on the other day at 3am or so, only a few people on, I was all the way down by the beach, and I slowly watch this head move down the mini-map towards me, with a barrage of bullets in front of him. It's not fun if you can't progress because you're constantly killed.
If you have constant content being added, and have it so people can actually enjoy the new content without being killed, you have a fun playerworld.

Also, I personally look for what Graal was originally supposed to be, online Zelda. If a server is ever released with Zelda gameplay(actual dungeons and bosses, not push/pushblocksx100 and killbaddiesx100 with a glitchy boss), I'll probably cry. Oh, and lots of side-quests are always fun, and I mean lots.