They are all about the same brightness with fresh batteries. The cateye outshines the other two after 12hrs (AA batteries FTW).
All three seem to work well. The differences in beam and flash patterns are quite useful for wasting hours on the interweb but not so significant in the real world.
Here is the 12 hour beamshot from my comparison thread.


10 wheels you keep posting those pics in threads that don't talk about the Vetta. You know what I see? I see an orange vest on the left and a yellow on the right, then an orange helmet, then the safety triangle, then a couple of lights that look about the same brightness. Then I see an identical photo below. You need to up your shutter speed so the lights look red instead of saturating the camera. Once saturated a larger light will look brighter.

Seeker there is a little button at the top left which lets you start your own thread. Maybe you could call it Vetta TSL-C is betterer than your blinkie , some runtime tests and a big warning about the lack of battery polarity protection. And people can come and post random pics of other lights.