i am with y'all on the short attention span theatre; CG, corona, and robusto are my mainstays, and i can often get an hour or more out of a PC.
if it has to be an all day affair (and i rarely afford myself that luxury), the liga corona dobles (both), the larger anejo (48 & 49?), the don carlos presidente, most of the cojonu (hell, even the miami tainos), all are worth it to me. i remember when we were first married, my lady got me an opus A, bitch took me FOUR AND A HALF HOURS! to this day, the ONLY cigar i had to take a break during. o)