Good luck! IMO north is a better "all around permit" , but south is the "elk" permit.
Fire guy, IMO only I think the walk ins are mostly a waste. Although some areas are gated to all motorized access.( Vail has some areas like that) . The majority of the unit will be competing with vehicles access. I would look for areas under 3 ish miles from a access, preferably one that is a good ways from one of the recreational access points and start there.