at this lift height, "best" is kind of subjective due to the fact that everyone has a different idea of what a comfortable ride is. if it were me, i would go with an evo mfg enforcer kit with bilstein 5100 shocks and drag link flip kit. if you like a ride that is more firm, an FT 3" ultimate kit is a good option and if you like it even more firm, the TF 2.5" coil kit might be what you want. ideally, the more components you can afford to get (adjustable control arms, etc), the more you can dial in your ride. being that you have an automatic, you should be aware that you will need to get a new front driveshaft as well so, be sure to include that in your cost. since you have a 4-door, you'll be fine with the rear shaft.