I voted O&U cos my favourite gun is a Miroku MK38, but I also have a cheap LIG S by S for rough shooting and I'm now thinking of getting a semi for pidgeons and sporting clays.
To be honest, I like all guns.
__________________ I like to think the older I get the wiser I become, but I'm not so sure.
I have had in my years of shooting all kinds of guns and now I only use my BERETTA O/U 682 Gold for Clays and rough shooting and my Beretta A 301 only on Dove shooting
The sutisfaction and general feeling of an O/u is to me the best