As someone pointed out earlier, what diving do you do?
What preferences do you have, especially BCD and fins?
I would pick equipment idependently of brand as chances are that no single company will have everything that works well for you.
So here some equipment that works well for me:
BCD - Zeagle (Ranger, preferably with a smaller bladder) or DiveRite Transpack II. Obviously my preference is back bouyancy, both manufactures offer high quality and very good customer service. For a while I've been using bp/w combo (prefer the stability and lower drag), DiveRite bp and Oxycheq 45# wing. For those either DiveRite, Halcyon or Zeagle will do just fine, as will plenty of small manufactures.
Regs - Atomic B1, the B2 is the current model, they are great. I've also tried Scubapros, Apeks and DiveRites, all worked well enough.
Mask - whatever fits you face. For me Cressis do the trick. I have two, forgot the names.
Fins - I currently have Scubapro Jetfins and Apollo Split fins, and use both.
Tried Atomic Splits which work better than the Apollos but hated the buckle, as well as Force Fins Pro which worked well. They'll likely be the replacement for the Apollos soon. Used to have Mares Avanti Quattros, very good alround fins (but I don't like their buckle either).
Computer: the Hydrospace Explorer is my first choice, though expensive. Has by far the best dispay and most versatility. Displaywise, Uwatec/Scubapro is a close second, I still have an old Aladin Air that works well. As a back-up I replaced my dive watch with a DiveRite Plus. Works well, 2 Nitrox mixes and gauge mode, I just don't like to have to switch between screens. Knowing DiveRite's customer service, I'd go with a Duo instead of a Viper.
Snorkle - don't use 'em. If they are required I zip-tie one to my backplate.