OOooooo tyre talk, gotta love talking rubber!
Right then, I have had General Grabber ATs (31/10.50/15) on Eva and I have to say that they were an awesome tyre, until they got muddy that is, but great in sand, snow and on the black stuff. Being the daft bloke that I am I did find time during a snowy day to test them fully and I found it next to impossible to get them to slide out.
This weekend I was setting out a new offroad course through a woodland which was a helishly muddy claggy terrain. It was sooooo fun!!

Anyway the guy in front had BFG ATs (265/85/16) and they were superb in the clag, coupled with some excellent driving skills too. Everyone knows that the AT is excellent on road, but for an AT tyre they are also very competent on road, plus I have heard of BFG ATs doing 90,000miles before needing to be replaced!!
I have on Eva the BFG MTs (265/85/16s) and they are IMO a phenominal tyre, superb on and offroad and excellent in the snow - They are classed as a Mud + Snow tyre! Best money I have ever spent, love BFGs!
What you have to decide is how often you are going to encounter "real mud", it sounds like your going to be predominantly doing tarmac miles so if I were you I would go with the BFG AT - You won't be disappointed! Promise!