I ran Grabber APs. They were a great tire and I got around 45,000 miles out of them between the two trucks. I'd buy them again if I needed a set of general all purpose tires like what you'd put on a daily driver/family camping rig. They were surprisingly good in the snow, the sand, and not too bad in the mud.
I don't know about the MTs though.
Keep in mind that these are pretty dated tires. My Dad has a magazine with an article on the ATs, APs, and MTs from like 1989 and they were an old tire then.