I'm going to have to agree FFXIV right now doesn't seem like it would work too well with "open world" PVP, though the battle arena looks like it would work well, or a specific map made for open world PVP with high leveled monsters.

Anyway, for open world PVP they should have a risk factor, where you can lose gear and such, I played a few MMORPGs with PVP like this and it was the funnest I ever had in mmorpgs. You'll only lose your gear if you kill too much, but all ur invent drops from being killed regardless etc. I see no point in PVP if there isn't a system similar to that, or atleast a ranking system(like their planning)

As for Tera's PVP, I find almost no point to participating in it... It's too gear based.

GW2 PVP looks fun and the fact it's balanced is a plus, it has WvW too

D3 pvp looks like it has the hardcore type of PVP i've been looking for again, although I really hate playing scary things lol

I don't know any other good PVP mmorpgs coming out