2. Do you mind dying if the mob is actually another player but it was fair combat and fun? - no, but there is the rub. What makes it fair when I am walking along and get ganked by somebody 10 levels higher than me? This is specifically what bothers me about the idea of PvP.
Unfortunately this does happen from time to time in my experience
You should really give a mmo a chance, it is my favorite way to play computer games. To me the $10-$15 for a month of play is extremely cost effective. The last time I took my wife to the movies for 2 hours of entertainment it cost me almost $50.00 before it was all over with it.
As far a PVP I use to not like it until I played DAOC many years ago and since then I am hooked. It is now the main thing I look for in a MMO. Just get use to getting killed and often. YOU will die in PVP. In my 14 years of MMO pvp'ing I have come across a very small percentage of $ssholes. Usually if so its a 12 year old or something like that. Most players respect their opponents. I just hope GW gets the balance right from the start.