The quality of the moog bushings are better than the progress.
Based on what? One member's opinion/external inspection? ->
http://9thcivic.com/forum/threads/rear-sway-bar-bushing-upgrade.10188/
Consider this, you buy either the 22mm Progress bar or the 24mm - Guess what, it comes with bushings (and the latter with adjustable endlinks as well.) You can't expect anyone with half a mind to believe that the slight (and I do mean 'slight') differences between Progress' bushings and Moog's bushings to be worth the cost of not only paying for the included Progress bushings, but then to also throw them aside, to then go and spend more cash on the Moogs. (Albiet only $10, but its $10 that just isn't worth it to me. - Say the Progress' were even just $5, thats $15 total. On a wear item, mind you.)
I've personally used Progress' 22mm bushings for the past ~50k miles. No need for replacement yet. No signs of failure. And *IF* they do, then I'll buy whatever is cheapest. Soley for the reason that I'll bet that extra $15 that I, nor 99% of people here, would be able to tell the difference between the two with the car in motion. The bar increase/decrease in size is whats going to be felt most (and even that won't be very noticable to users on upgraded suspensions with stiffer spring rates - Ask RedShiftChris if you need the opinion of someone in the "know".)
To recap, in dollar figures:
Progress 22mm Sway - $203 (Corsport) w/ bushings
Moog bushings - $10 (Amazon)
Moog Endlinks (NON-adjustable) - $62 (Redshift/Bestsuspension) ->
http://store.redshiftmotorsports.com/moog/moog_antiroll_bar_endlinks/k750125k750126/i-1926701.aspx
-OR-
Hotchkis Adjustable Endlinks - $117 (Kseriesparts) ->
http://www.kseriesparts.com/cr/HOT-25405R.html
-OR-
Progress Adjustable Endlinks - $111 (Corsport)
Total: (Worst Case) - $330; (Best case) - $275, and lose the ability to properly corner balance due to non-adjustable endlinks.
... Or buy Progress' 24mm "kit" (includes adjustable endlinks) from RedShiftChris for $265. To me, thats a no brainer.