I'm principally using the medications to get rid of milia and dehydrated skin.
After posting this, I tried using Retin-A Micro for two weeks and it didn't really work out. I know you're supposed to give it more time, but the only thing it was doing was making my skin dry. It didn't even seem to exfoliate or bring up any gunk from my skin. It just made it somewhat dry.
I'm now back on Differin .3%, which was working really well before I switched off it and on to the Retin-A Micro .1%. I may give Tazorac a shot at some point, but I plan on sticking with Differin for at least a couple of months.