fishblade, I am also close to selecting a O/U and, while the front runner for me is the Citori XS Skeet, I have yet to rule out a 682 Beretta. I think you will find, as I am and as most will tell you, it all comes down to a matter of personal feel and fit. For instance Zippy mentioned triggers. A lot of folk seem to prefer Bereetta triggers. I don't know if I can tell the difference.
If at all possible, shoot them both. One I had to rent at shooting part and the other another shooter let me try. That was a week apart and now I am trying to arrange to shoot both the same day.
Try this. Clubs rent guns, but the selection is more limited at one than the other. If you can find a club that rents both guns and and perhaps anaother that you are interesting in buying, ask if you can shoot ball of them. They may charge a fee per gun, but if they think you are a serious prospective buyer, they may only charge you a single fee to shoot them all.
It has been said by many that if one fits you the other will not. I am just such a clutz that I need to shoot them together to confirm what I think I have noticed.