I'm probably a bit late in the game to comment, but I own three reg setups:
A Sherwood Oasis, a Scubapro Mk 20/ G250 and a recently acquired AL Titan LX 2009 ACD.
Since I acquired it (originally ostensibly as a spare) and another one for my wife it has been the only reg I've dived with. Since they all breath about the same, it comes down to subtleties. The Titan is extremely lightweight and comfortable. Additionally, since I'm the kind of diver who has regularly and repeatedly dumped my regulators into fresh water tanks without replacing the yoke plug, I like the ACD (auto closure device) feature in the Aqua Lung regs. It will probably save me a few hundred $$$ in service over time.
