I have to decide.Follow

Well if you don't want to tank, certainly don't pick the 'zerker. That's what he is. The bruiser is a tank too, though avoidance based...it won't be as often but you will be asked to tank as a bruiser as well from time to time. Of the options your best best is the brig. You won't be able to take a hit as well as the 'zerker, but that's the trade off. You can't expect to play a class designed to tank and not be asked to tank when you are in a group.

Depends on how you define "decent gear".

You will be able to buy anything anyone else can, so you could have mastercrafted armor and weapons. In addition, you will be able to acquire gear from drops and quests that will stand up to most anything you would want to tackle solo or in a small or full group.

You won't have access to the really high end gear - i.e the gear drops in raids and in the best instances but if you don't go there, you don't really need gear from there, eh?

Bottom line is yes, you can solo to lvl 80 and when you get there you should have very respectable gear... maybe not the best, but very good.