Well I stayed in 31-40's pvp for 1 month, if you could convert the prefix from pvp set to sprite set then sprite set would win hands down. I had both Heavy armor sprite set and pvp set... Sprite set was better and that blue axe you traded for king of the battlefield helped a lot but i also had another king of the battlefield and still do.
Heavy warrior army 4/5
King of the battlefield 5+ with Ultimate Explosion
Blue headhunter or Helmless depending how good it is 5+ with Ultimate explosion
Head gear is unsure cause you cannot get sprite head gear until 41
But word of advice, 40's is very hard and frustrating... Without legacy it will seem difficult.
And dont attack pally's as a zerk unless your ganging, Pallies are difficult