Another daring fix is to forbid Strategic Bombers to hit planes, whether in land or naval combat. Only naval or ground units can be taken as casualty.
That way, all Fighters and Tactical Bombers can survive a swarm of Strat Bombers.
And needs other kind of units to conquer a land territory.
However, surface warships and TPs becomes much vulnerable because you cannot use Fgs as shields.
Battleships and Carriers becomes much easier to target and sink.
Another fix which is less potent against StBs is to make all Carriers able to carry 3 Fighters or TacBs instead of just 2 as OOB. It is Black_Elk idea.
http://www.axisandallies.org/forums/index.php?topic=35415.msg1383361#msg1383361
To get the better balance, maybe it needs to be put with similar Transport changes such as
suggested earlier:
TRANSPORT
7 IPCs A0 D0 *AA1 M2-3 (NB), 1 hit, taken last as casualty
Carry 2 units, 1 Inf + 1 any ground unit
No defense against warships.
Beginning on the second round, 1 Transport can escape from Naval Battle in the same SZ at each end of combat round, if there is no enemy’s aircraft.
Simply remove TP from battle board and place it in the same SZ on the map.
*Regular AA @1 against up to 1 plane each combat round, whichever the lesser.