I enjoy my WF barbarian, and I would make him again the same way if I had to start over.
A bit of advice, though: Don't make the mistake of keeping a body feat for too long. Adamantine body will give you some useful AC at the lower levels, but somewhere around levels 8-10 you'll have to either abandon AC or have a build focused toward barbarian AC to keep it at a useful level. Dwarves are actually at a large advantage here with their racial enhancements.
For a typical barbarian who is worried about DPS, drop that body feat as soon as your notice that AC is not providing a benefit. Do your best to find a docent of defiance as soon as you can. The DR on this item will greatly improve your ability to survive, and this is something that only warforged can wear.