The following regs would all be great for the kind of diving you would be doing.
Scubapro MK 17 + S600 or G250
Atomic M1
Oceanic Delta 4 FDX10
Here are some of my thoughts.
Price: Oceanic #1, Scubapro #2, Atomic #3 I am not sure of the exact retail cost but I think you could almost buy 2 Oceanics to one Atomic.
Performance: Tie, All three of these breath great. They should all give you more performance than you would ever need.
Coldwater: Once again tie, but I prefer the Scubapro and Oceanic's dry seal
Hose Routing: #1 Atomic, I prefer the various routing options available with the turret/swivel style first stage of the Atomic but this my opinion. #2 Tie between Scubapro and Oceanic(although Oceanics swivel seems pretty comfortable I think all of these are very comfy without the swivel).
Bubble Interference: #1 Atomic, #2 Scubapro(if you go with the G250), #3 Oceanic
Support after the sale: #1 Scubapro, Slight edge to Scubapro for worldwide parts availability. But if you are diving close to home this is a non issue. I have dealt with all three manufacturers and they are all great. #2 Tie Oceanic/Atomic
Resale Value: #1 Atomic, #2 Scubapro, #3 Oceanic, If you ever want to change gear or get out of your gear I have found it easier for me to sale Atomic and Scubapro on ebay than any other brand I have had.
Hope this helps,
Gillty