Aromatherapy provides team support, getting rid of status. In this way Alakazam, Arcanine, and Hitmonlee won't be crippled by Paralysis, Hitmonlee and Marowak won't be crippled by Burn, Toxic won't bring down any of my Pokemon, and Sleep and Freeze are no danger at all. Plus, its unlikely Chansey will be able to hold out long enough to make use of Toxic.
Fake Out on Hitmonlee provides nice free damage. It also gives me a free speed boost. When I use Fake Out, it activates the Normal Gem. Not only have I damaged the foe, I've also doubled Hitmonlee's Speed because of Unburden, all without Hitmonlee taking any damage.
Bonemerang is there to take down Substitutes mainly, as well as Focus Sashes and Sturdy. The lower accuracy is worth it for this effect.
If you're going to suggest replacments for anything, please give reason for why you are doing this.