I wish I had gotten my hands on a SAW. During my career I fired everything in the inventory except the SAW and the Mk 19 grenade launcher. You're probably going to laugh, but my favorite weapon during my career was the venerable M3 "grease gun." Unfortunately, I didn't get to carry it that much, and mostly used the M16. My least favorite weapon was the .38 Special I carried while I was assigned to an aviation unit. What a piece of junk!
I was issued one of those puppies in 1986 while at the 5th ID. Loved it.