So Fire Zerk with 100/100 hit/dam and dual wielding fire weapons.
What's wrong with Berserkers?
Nope, better than that. (Not that that combo doesn't kick butt-it sure looks good on paper)
I'm guessing you mean Ogre. I suppose they'd be alright, but with healing reduced you wont get the regen they used to get which probably wont make them as good as the Fire Giant. I still say Fire beats Ogre even with their regen, just depends on how you go about it.
I've done ogre berserker (restrung as a Troll) with a previous character. The aforementioned character, combined with his cabal choice, was the BANE of all ogre rangers. Blademasters went down too, and even the occasional ogre warrior. This CURRENT racial choice was an experiment-one that's shaping out better than I had planned. Hell, I almost one-rounded Thicil the other day. And people say berserkers need balancing.. here's a tip, stop playing them like warriors! 
Dwarf or Duergar then. Otherwise it'd only be one of three other races.
I've done both duergar and dwarf berserkers in Warmaster, as Rothgal and Bazin respectively. They were fun, but I needed something new.
werebeast? stone giant?
HUMAN! 
Nah, my guess is stone.
Ask Thicil hehe
If you are smart and you pay attention to Flayers other post in other sections you could probably make an educated guess at his race for his zerk.
It's not that I'm not smart, it's the fact that I thought about doing so to begin with, but figured I'd rather guess to see if I could nail it without looking at other posts. Aside from that though, I honestly don't care overly much to know who plays who, as it just means to me that it's another person playing another character, or in some cases, another person playing the same damned class 90 times in a row or even overall.
What is wrong with you people? - you can't even have a discussion about a single class without:
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Trying to guess someone's character
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Talking about warrior vs invoker
I've read a lot on this thread and a lot of it is wrong. More of it is just people's opinions of single situations - many of whom I'd wager wouldn't have had 50 hours on a pinnacled zerk.
L-A
I've had a total of 300 hours on pinnacled zerks, one of which was in WM. Also if people would just tell me I wouldn't have to guess. Finally, no one was posting anything worth any constructive R&Ring about. Add the parts that were decent to your thread so people could discuss it more possibly.
My thread was linked in my post - it you can't click it I can't help you....
L-A
I didn't say not to click it I meant to add that TO the thread itself. It makes it where all the information is in one place, it makes it easier than clicking on several different threads now (which there's three now in all that I can recall). It's not that I can't click, it's the fact that if you want it actually changed, the information should be easily gotten and all in once place rather than everywhere in a forum that has several hundred threads.
I do not wanna hear that a voker cannot take 1/4 of your hp in one round. I played two drow to pinnacle, and never bothered having over 800 hp. Because an invoker that knows his certain skill, can EASILY take 1/3rd of someones hp in a round. I remember 3 rounding an ogre ranger because I got his sanc down after he missed a throw.