I have had both and I like aluminum. I used to run the old slotted mags on a suburban and was in a head on with a van. It hit the left front corner and popped the tire, bent the dana 44 housing, sheared off the spring pin, bent the frame, and buckled the roof. the 15x10 rim was fine. I put another tire on it and ran it on another truck for years. I'm sure those were only cast rims.
