Well, I have enjoyed Ballinger, Gorman, Frazier Mountain, Rowher, Kennedy Meadows, the desert around Ridgecrest and years ago around California City.
I have hit a few MX tracks (literally hit them!

) and I have another go at that coming in October in Taft. I am going to be attending the Oregon bash in July as well.
I don't care for endless whoops and deep sand that much. I have never been to the dunes and I don't think I would like that, but should give it a try. I like to ride where there are places to really let the X run. I am not the best technical rider out there. My balance isn't what it used to be. MX tracks of today have too many large jumps for my taste.
Hope that answers your question.
Joe
'05 CRF450X,McClain suspension, Cycra Probends, Pastrana FMX Pro Tapers,BRP Sub mount & Scotts stabilizer.See carb sticky for more