What class isn't more fun with a myth epic?
Anyway, I've been slowly leveling up my zerker, as I have a lvl 80 coercer as my main, 80 necro, 80 Mystic and 75 warlock (and some other lv 40's-60's) that take the bulk of my game time, getting the zerker to 79 has been a nice slow process. I'm really enjoying the class now for 2 main reasons- 1. it's my only tank and 2. most of the no-trade gear is now heirloom (i.e. can be traded within your account until it has been attuned). I have been able to win some nice gear for the zerker while playing the others that the tank can grow in to over time. He has far better gear than if he had to find a group and win it (the coercer can practically look at a group and get invited,

). Yes, he's well twinked....
As a tank class I can't really compare it since I don't play any others, but for straight enjoyment he's a blast to run around with... I should say I've almost never grouped him outside of our very small guild and solo 90% of the time. I was concerned when I heard the class was nerfed sometime before I started playing eq2 and was worried the high end of the game would fall apart for him, but have seen no such thing. I'm guessing they were really over-powered.
I've seen zerkers get passed over for groups for other tank classes (mainly SK's), but on my server it usually boils down to just getting a plate tank and have grouped with a lot of zerkers that were awesome in instances. Not sure about a zerkers role in a raid, so no help there.
Plate tank gear is insane now with TSO (most classes get crazy gear now, my only complaint is chain healer... mystic got screwed with the shard gear, IMO.
Excuse the length. I hope this was slightly helpful. GL and have fun with your bezerker!