Apparently no one has both
And between units of the same brand, there seems to be quite a lot of variants as well.
In our GB, it seems that some have a better hotspot than others and I have directly compared to a friend's Brightstar (bought 1 yr back though, seldom used) and his beam is more yellowish and has a weaker hotspot. Maybe his batteries are "old"?
They are probably very close in light output at least. Quality wise and longevity, that we can't really do a side by side comparison. Feedback from various sources should suffice. So far it seems all lights are doing well unless there are members who are not reporting.
I only read about one member who dropped his brightstar and it had some problems. That's expected cuz its so darn heavy!