Personally I have always favoured a pally tank, as I have to agree that it is a easier option for boxing, especially in tbc, wrath and cata, my 2nd choice was a DK and then a bear, I did play around with a warrior but seemed to many things to do and could not get away with a brew master at all

Plus the other bonus of playing with the pally tank was when my girlfriend pulled before me ( because she got bored of waiting for me to position the team) I had a macro that targeted her and cast HoS.

Or there was the spell (forget the name now) that could every 2 minutes direct all damage to the raid at the tank, sadly that was taken out in MoP

For me in wrath my favourite tank to play was the DW Frost DK, they were just awesome! to the point where I would get complaints from warrior tanks in raids that I was out aggroing them, and then sadly again, blizz in its infinite wisdom took away the frost tank