In reply to Toerag:
The best of all worlds is a mix. Personally, climbing on longer igneous pitches, 1 set of wallnuts, 1-7 rocks, gold - grey DMM offsets, and then most of a set of IMPs, mixed with some BD microstoppers, HB bronze nuts and a few dmm bronze offsets.
Metolius are hard to clean. BDs don't seat as well. Camp Pronuts just look daft. Most older models have been superceded.
Post edited at 20:20