Forsberg, my 60-Rge- Berserker on FH is a decent dueler, not the best but ive been known to go against some of the best and hold my own. I haven't played him in some time, but if I remember I had 550str 535sta and low 500 dex....never touched Agi, except what I got in cms, most Rges say that is stupid, but it really depends on how you play YOUR toon. my Cm count was 980, and geesh I do believe I max'd my hp at 7.3k, I used to play with a Rge that was a Bravo, same CM count but built like a rge should be, but had 60epics done, we dueled nonstop, he'd win, id win lol. his Hp was at like 6500 or so. Darkfury was a kickass Rge.
So for best Rge build, no clue, you'll have to find out yourself....just play your Rge the way you think you'd like him.