I am currently leveling a 5 group exclusively through dungeons where I use a warrior tank. For me using charge/shockwave just adds that extra touch of fun. I have unedited footage of every instance till now (mid 70s) on youtube if you'd care.

As for rogues, I've multiboxed tripple sub rogues on and off during the past seasons in arena. They are incredibly fun but also a bit of a 1-trick pony.