PT's come in fancy colors, but they're supposed to be SIGNIFICANTLY DIMMER than the competition.
Haven't checked 'em side by side myself, so take it wth a grain of salt.
By all accounts, Trij's and Mepro's are pretty much equal. Dunno what I've got on my somewhat-aged S&W 1066, but they work. Kinda dim, though. But mine are old, and night sights have a finite life of about fifteen years or so. In my case, if it's dark enought to see the sights glow, I CANNOT see the target at all.
Sent the gun to Smith when I got it, with a note to look at the sights. They checked point-of-aim/point-of-impact, but didn't put new sights in for free, the cheapskates. Maybe they're still bright. I dunno, I don't have any others. I'm gonna buy either Mepro's or Trijicons for my G-32 when I finally get around to doing it.