I say no to multiple servers. I like the idea of everyone being under the one roof with the one set of rules.
I am not a PvPer, my sole involvement with PvP to this point has been to be whacked and have my tools stolen. I see that as a learning experience and some additional spice to the game. I adapted the way I played and hopefully this won't be an issue for me again. If the safe zones changed or were removed, I'd adapt again.