I commute on average 120-150 miles a week, and seem to have puntctures about once every fortnight!!
So far the tyres i've tried and failed with are: Maxxis Re-fuse 700x23 and 25, Fortezza Tri-Comp 700x23, Gatorskins 700 x 25.
I am currently using the Schwalbe Durano Plus on the rear wheel and have ordered another for the front. But just wanted to see what are other heavy-set riders were running on their bikes.