They are all smokin rigs. The Apeks gives you the option of a large exhaust T, a feature I think is really nice.

The Atomics, although stainless steel and titanium parts are cool, I would prefer an all titanium one as long as I wasn't using nitrox with an 02 content off the scale.

If you travel, that 2lbs or whatever weight savings can make a difference.

Because of the large exhaust T, the Apeks would be my choice.