I personally like Revised better, because of the NOs (optional rules at back of book) can change up the game play.
I would like to play Revised with the NOs, but update the naval rules to 1942.
Buy 1942 for the extra pcs and the Cruisers… play Revised IMHO.
You can try these for AA42: http://www.axisandallies.org/forums/index.php?topic=20053.0 and http://www.axisandallies.org/forums/index.php?topic=15052.0 for NOs and NAs.