I am currently using 2 112's for my orange Rockerverb. 1 is a marshall 1912 with a Mesa custom 90, the other is a mesa recto 112 with a vintage 30.
For practice I put on cab out front as a monitor and sit the head on the 2nd. This allows me to hear myself and for the rest of the group to hear me. It helps me keep my volume down. So it would be nice if one was wide enough for most heads and the other had a kick back leg to use it as a monitor.
Hehe, it sounds pretty awesome. At least at low-mid volumes. The problem is that it sounds boxy and not that great at high gain settings at loud volumes. That's why I'm probably gonna pick up a 2x12 soon.