I haven't really rented too many cars as I usually drive anywhere that I travel and I always have a spare car to drive when I need but the cars I have rented are:

2009 Chevrolet Impala LS (when my wife wrecked her Astro)
2008 Ford F-150 SuperCab (when my Express was in a hit and run)
2004 Chevrolet Silverado Ext Cab (when my buddy wrecked my SC2)
2002 Ford E-350 Cargo (on a work trip to Alaska)
1999 Toyota 4Runner Limited (on my last visit to Guam)