You guys might want to do like Ars and pick a specific WU (or perhaps WUs from different angle ranges, eg., one from the VLARs, one from the "mids" and one from the VHARs) for people to run so you get a more accurate way to compare times... 🙂
Alternately, a bunch of us have found that WUs with the same angle range will run pretty close to each other time-wise (if you run them on a dedicated cruncher - they'll vary if you actually use the machine), so people could report times for clients, CPU, etc., for any specifically named angle range and then compare that way...