thomjinx:The Sherwood Oasis and Maximus have some of the widest exhaust tees that I have seen.
Same with the Sherwood Blizzard. I don't know if I mentally process them away or if it's that effective but with the "walruss" exhaust tee I'm not aware of bubbles in my field of view.
As for being a "top" reg you need a criteria. For reliability, ease, availability and economy of service you'd be hard pressed to beat them. There are easier breathers but in the recreational range they serve the need nicely.
Pete