Sprint, Jetpack, Active Camouflage, and Hologram. THAT IS IT.
Do not ruin the game by putting armor lock in the most overplayed social playlists and for god sake do not place evade (AKA retarded gravity defying roll with the help of nitrous) and Bubble Shield in team objective playlists. For those of you complaining about AA's being in the game it's not like they will place them in EVERY playlist. Only a certain few playlists will have the four "liked"AA's and the classic Sprint Only/No Sprint playlists will still be there for you to enjoy...
Also Hologram could use a huge buff. It should actually be programmed to look and shoot like players and should have shields as well. This way it's actually worth using.
As much as everyone complains about Armor Lock, I actually found Active Camo the most annoying. Especially getting killed by cloaked snipers, and having my radar scrambled by a nearby teammate.
Armor Lock was fun in some gametypes, especially in Elite Slayer before it got nerfed, when everyone would stick each other with plasmas and then Armor Lock and watch the grenades bounce around.
I wouldn't complain if the only ones they kept were Sprint, Jetpack and Evade, as long as they add some other new feature to make the gameplay interesting. Halo 3 had equipment, Reach had AAs, Halo 4 needs its own new thing as well.