My main on till recently my only character is a Druid. I must say that even tho the first 20-30 levels it felt like it was gonna take forever to level up and the constant frustration by how easy I died and my paladin friend never did and leveled like a rocket I found out that goin through that really gave me a steady, strong and very flexible character.
I´m almost 100% feral and tank and many times I must say I outtank the prot specced warriors both in stats and way of playing. Mostly the way of playing, the gamestyle, comes with the nature of being druid since you not always could just rush in and kill everything you see, as a warrior normally is used to do when soloing.
My equipment is 95% blue, one epic I´ve made with alchemy and my stats are 17,500+ armor 428 defense and 12,500 hp unbuffed, that´s made me tank many times when they´ve had to choose between me and a prot warrior, note, with epic gear.
Certainly the warrior would be awesome as tank since they have other specialities I don´t but their gamestyle really can ruin the tanking style, not to say I´ve met some really good warrior tanks.
BTW must add, when i speak of gamestyle to emphasize what I mean, that having a rogue playing solo rogue gamestyle in an instance with 5 or more people can be really really annoying. Can´t remember how many times we´ve had totally wrecked instanses ´cause of rogues just playing rogues. Some of them aren´t teamplayers and maybe thats why they chose rogue class. Maybe I chose druid ´cause I like the way they are meant to be played, balanced but still very good at what they can do if played correctly.
I could go on forever and ever but I wont (already halfway though xD )
Hope this might help a bit, otherwise feel free to ask me for advice on druid
Vahanessi (ingame name, The Venture Co.)