Phil,
I voted and replied on TheNewX.
I mentioned there that I recently discovered some great trails in and around Big Bear, coincidentally on a trip with the Big Bear 4x4's Club (all Jeeps, took a dose of good natured "grocery getter" ribbing).
I was pleasantly surprised at the amount, variety, and quality of trails a little over two hours away (which would fall into the 100+ category of the poll) that were mapped and ready for exploration.
One area I would love to explore more is the Mojave area, from Lone Pine east into Death Valley, which is my fall/winter goal this year.