ND Isles is a favorite here as well.  Mostly because of the ability to actually use CV's.  Naval battles are severely limited in most other maps.  It provides a good deal of low level furballin' especially when a CV is off the coast or when A1 and A5 are owned by opposite sides.  Strategic bombing has a purpose in this map, although I very rarely fly bombers (once per month, avg).  With a bomber or two, it is possible to actually degrade the warfighting ability of another side without having to actually capture a base.  Fighting is also more intense when it comes to defending "your island."  The only drawback is that it is far too easy for two sides to fight a third with 2:1 odds.  Still its not quite as bad as the Lake Ute map in this respect.
MiG