Bdog,
I chose Trijicon's for my Glock a couple of years ago. They are still burning brightly. Mostly, I chose the Trijicon's because that's what my gun shop had in stock. However, I do remember that I read that the Trijicon's have more shock absorbing material around the little glass vials. Anyway, they're still bright.
Night sights are a good investment simply because in the dark you can always see exactly where your pistol is located.
Will