Armor Ability Ideas and opinions for Halo 4

I want to know everyones opinion on Halo 4 and AAs (Armor Abilities), it mostly got bad impressions from Reach, as my brother once said “Waters down the gameplay”, I, for one, think that AAs added variability to the gameplay and made it more intresting. So I ask you, what AAs should change? Which ones should be removed? Do you want AAs in Halo 4? To start you off Ill give you my answer, Yes I want AAs, none should be removed, instead, replace Armor lock with 1.5 overshields that recharge (recharge time around 20 seconds) and instead of loadouts make the AAs spawn around the map like weapons so everyone starts out equal. What are your thoughts?