For color scans I generally use an Epson 850 but it's been actin funny so it's getting looked at. I pulled out a Canon 9000F II while it's in the shop and have been using it for color slide. Just scanned some 135 black & white from this weekend and I am really surprised at its quality. I am using Silverfast though... This was all shot on a Leica M4 BP with a 21mm Elmarit ASPH. I really love the FL on the rangefinder.
Leica M4 w/Elmarit 21mm (Orange filter)
Ilford Delta 400 at box
Ilfotec DD-X (1+4) 7:30 at 21c