Scubapro has a much wider dealer network and service is much easier to find on trips if you need it. You are also more liekly to have a Scubapro delaer nearby if you move someday.
Performance wise, you'll be happy with either one.
Titanium will cost you about twice as much from either company. It is lighter, but unless you travel a lot and are always a couple pounds over airline weight limits it offers no real advantage as you have to add the extra weigh back as lead once you get to the dive site. Personally, if I my bags were a pound or two overweight, I'd rather solve the problem by carrying my heavier brass reg in a carry on.
Titanium is also limited to O2 mixes no higher than 40% while a properly cleaned brass first stage can operate with mixes up to 100%. Chrome plated brass also has a very good history of longevity in a marine environment with regs lasting 30 plus years if properly maintained. It will take at least 20 more years before the same thing can be determined regarding titanium regs.