I *personally* feel there's no need to play on a PvP server, even if you kinda like to PvP. There are three kinds of people that should play on a PvP server:
1) The loser scum gankers that want to grief people. (This was a given.)
2) The people that get a thrill out of being attacked by opponents that have intelligence that isn't artificial.
3) The people that think it creates a lapse in continuity if they, as a troll, see a dwarf in their lands and can't do anything to stop him.
Unless you definitely feel you are one of those three types, I would just play on the PvE, and "consent" to PvP when you feel like it. It isn't completely fair to call them carebear servers.
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Only the exceptions can be exceptional.