2 things :)

ArzhAngel

(Euro - servers)

1. How is to play on the pvp severs ganking all the way or ?

2. What PVE server has the most players ?

Gonesolo

1: can't answer directly as I don't have a PvP character, however friends have started PvP characters and I've been told it's not all ganking some good group fights.

2: PvE servers seem equally populated tbh. I believe new servers are on the way for EU so populations on both PvE servers are healthy.

Ikeda

1. How is to play on the pvp severs ganking all the way or ?

There IS ganking.  There are a TON of 30's.  People are currently rolling their 2nd-3rd alts.  While you DO have griefers, you may only get ganked a handful of times between 0-15.  A level 5 is PERFECTLY capable of taking out a lvl 15.  You also need to consider playstyle.  A stun and run character can escape almost EVERYTHING.

2. What PVE server has the most players ?

I don't have this answer.  I don't PvE with this game.  As far as I've never seen ANY of the PvE servers with a High/Full pop.  The same cannot be said for PvP servers which almost ALL are running high or full.  TBH, the PvP on the PvE server isn't very well thought out IMO. 

Cammy

1. In my experience PVP servers are full of gankers, at least on the PS3 version. I can't even do the beginner quests without getting ganked REPEATEDLY until I /ragequit and log out. People say you can kill a level 15 char as a level 5 but I don't really agree. You do have a chance - but overall they'll probably get the better of you pretty much everytime. I was level 4 and fighting a level 12 character - I could manage to get him to 1/2 health most times before he killed me. Then he'd heal up - I'd go back to finish questing and I'd be ganked again. This wasn't a 1, 2, or 10 time deal - it happened basically everytime I've ever played the game. Everytime I logged in it was exactly the same so I decided to be a carebear and settle for the PVE servers. I didn't really want to as I love PVP and especially world PVP fights... but I don't have the patience to deal with the constant ganking. Instead of crying in the forums, I just reroll and go along my merry way

2. No clue - not even sure if these stats are available at the moment... I play on the PS3/American servers so it would be different anyways but from the server select screen it says The Killing Joke is "full" where as the other PVP servers are "med". All PVE servers are listed as "med" as well.

nightowl79a

I allways play on pvp servers on every game, so i started out on a pvp server on DUCO. Personaly ive had a lot of fun with world pvp. I get ganked a bit but also had some epic fights and done some ganking myself. Very enjoyable.

Dont know about pve never liked the concept of only fighting AI.

mrw0lf

There's not much ganking, you level so quick the lvl 3 you were annoying is lvl15 3 hours later and cc'ing you into a load of mobs.

Saam1

servers should be called open pvp and restricted pvp. There is no true pve servers.