There are things that I would accept as long as there is a trade off...
For example:
-6 SWU instead of 8...sure, as long as I can confirm at time of booking.
-SWUs only good on higher fares...sure, same as above.
-Relatively cheap F fares (in detriment of space available for upgraders in "O" fares) ^
-Smaller F cabins (domestic/international), ok, but make sure to have enough MCE seats so PLT and EXP can always get one (not the case of A319)

But really, I do get a lot of use of my miles for my mother, bf and close friends, so a devaluation of the miles or significant surcharges on aawards would probably be what tips the scale. If can't use my AA miles on saaver awards, then I may just fly the airline that offers the best value for each particular trip (no loyalty to any airline)