PVP vs. PVE Question

Ok, So i have finished the game with 3 Characters. Currently working on my last character, all of wich are PVE. I dont have a PVP character so i dont have use for faction.

1. Whats better PVP or PVE characters ?

Am i missing something without one, since i heard PVP characters can only go to PVP arenas unless you have unlocked the game by pve storyline.

Im thinking of deleting one of my PVE characters to make 1 PVP Character to utalize the faction. So i would have 3 PVE's and one PVP.

Is it fair to PVE characters who have spent so much time into their characters than to someone who can just make a template, slap on a superior vigor , Superior Absorption, and any Uber weapons ?

It would be most apreciated if someone could show me the light in pros and cons, before i go erase a character i have spent 1 million xp on.
Thnx in Advance

Personally, I don't see a problem with it for a couple of reasons. First, you have to unlock everything via PvE, or pay ridiculous amounts of faction points (1000 for a minor rune? No thanks.) to unlock it all. Also, a PvE player who has ascended, infused, and what have you knows his class and skills much better than Joe Premade who just created his first PvP Elementalist a few days ago. Also, as far as I know, PvP characters are restricted to PvP, period. Even if you've finished the game's missions.