no kidding
anyway, the OP almost said it. people have absolutely no problem with 12pt box end wrenches, but think 12pt sockets round things off....
I agree with two inch, however I think the difference in 12 pt wrenches vs 12 pt sockets might be angle it's forced into sometimes. If you go straight on, I bet people wouldn't have an issue with 12pt sockets. But if you start pulling to a side, or odd angle, then I could see it causing an issue on a non-flank drive kind of socket.
I took a standard socket (non flank drive) and put a flashlight up to the square end and put a bolt in the business end. as long as it's straight you get pretty much equal contact on all 6 bolt corners. change it just a little and then a few corners start taking most of the load while others very little. The socket was the right size for the bolt, but was a craftsman socket that was a tad loose. I think loose sockets + off center driving = rounding. I bet a higher quality 12 pt that fit better wouldn't "let" the fastener move around in the socket as much and wouldn't be as prone to rounding. Not sure why that doesn't seem to be the case with 12 pt wrenches, maybe they aren't putting the same force on them to round the bolt. I know I can put way more torque on a bolt with my ratchet than I can with a standard length wrench