One thing the Minimag has going for it is the size of the aftermarket that has developed around it. You can get replacement lenses, reflectors, optics, tailswitches, and all kinds of LED modules. CPF members have done limited runs of HAIII bodies. If you don't mind a little extra effort you can customize it to be exactly what you want as far as brightness, runtime, throw vs. flood, etc.
My current favorite add-ons are the MJLED kit (decent brightness, long runtime) and the Lambda Minipro pil (great brightness, decent runtime). The Madmax Lite sandwich is also a great LuxIII module.