We have people at my unit who travle hundreds of miles for various different reasons. I wouldn't base a decision on "what's close" because so many variables apply. Also, remember, location may become important later, but reservist still go through months of training before they end up back home, and if you're unlucky as I was you can end up on active duty for upwards of a year (especially with a "medical thing") as they won't send you to your reserve unit if you have any medical, legal, etc. problems.
Further, Iraq ain't close, and if you're going to be a Marine, you have to plan to be there.
If you have any reserve specific questions feel free to e-mail or PM me.