From a performance perspective, you will not see any real difference in either reg. I would suggest a Titan first stage with the LX second stage is a less expensive reg than the Legend with equal performance. HOGS will be less expensive. There are other considerations. Can you get the HOG serviced locally or will you need to send it off, same question on the AL? If you travel a lot, the AL will be easier to have serviced world wide than the HOG, hopefully you will never need service away from home but it is worth considering. Then there is yoke vs. DIN. Each has it merits. If you don't travel and have your own tanks, DIN is fine but if you travel or rent tanks, yoke tanks are much easier to find. You can get adapter but they are a pain and IMO not as good an option as a yoke reg for those who rent tanks or travel a lot.