Get 70 99 40, new age runepure stats apparently, but definitely wait until the new pvp, incase you like that more.
It was supposed to come out sometime in September apparently, but there's not really much more chance of that happening, but it might be the monthly update.
train strength for now, and when the new pvp comes out, decide what is better. then if bounty is your choice, get def to 40 and attack to 70 or 60, i currently have a zerker pure with 81 strength and 60 attack 31 pray, its kinda hard to own tho coz too many 90s -.-
If you want to own right this second at bh, get 4o defense and 50 attack, you'll hit more often and get hit less, but if I was you I'd wait for the new PvP update coming, that account would probably OWN new PvP.
I'd say, stay 40 attack, and if you get p2p get 50 att for g maul.
But get 31 prayer(the strength prayer), 59 mage(fireblast and tele's), 40 range(chaps).