Without a doubt, I recommend Heinie Straight Eight night sights. I've shot with stock Glock polymer sights, Glock night sights, TruGlo night sights, Trijicons, and maybe one or two others. The only type I've never used are the fiber optic type (like the TruGlo TFOs). I think they would be great, but I've heard of them breaking with even 9mm and .40S&W. I can't imagine they would hold up to 10mm abuse.
My other recommendation would be the Ameriglo Hacks. The Hacks are just any combination of front and rear sights. You can choose any rear sight, and combine it with any front sight. They make a Hack set that looks like it would be awesome. If you go look back through some General Glocking threads, you will find the pictures. Some guy has two G19s with them on both. They are tritium rears with a tritium front, but the front sight has a big orange square on it. You have to call and ask for it specifically, because it's not on their site (or so he said). They also make one with an orange circle, but the square just looked awesome. I think it would be perfect for a carry gun. The bright orange front would make for VERY quick daytime sight acquisition, while the tritiums would work great at night. I think the best combo would be that front sight with a single dot rear. That would make it better for daytime target use, and I like the 2-dot arrangement best at night.
The Heinie Straight Eights are simply awesome, though. I have them on my G29, and couldn't be happier. In daylight, they are the best sight picture I've ever seen. At night, they are amazing. They have the brightest tritium I've seen (Trijicon vials), and the 2-dot setup is great. The front tritium vial is larger and brighter, so it's easier to pick up. At first, I thought the 2-dot setup wouldn't be as precise at night, because you wouldn't have a good idea of elevation, but just windage. However, that's not really the case. It's easy to learn where to hold the dots, and at SD ranges, it's not going to matter. You just stack the two dots and fire.
Here are some pictures of the Heinies: