I have had Tru Glo's,Metropro's,Glock NS's.A friend let me try his Heinie Straight Eights and they'll be my next.I like them best.Of the first three mentioned the Glock Night Sights seemed brightest when new.
I would like to get a set of XS Big Dots also. The more I see of them the better I like them.For SD, I like the XS Big Dot. I've installed a few sets of yellow/green Meps as well and really like them.
I really liked them on my G19, which was my "do everything" pistol, but I LOVE them on my G26 which became my EDC soon after buying.I would like to get a set of XS Big Dots also. The more I see of them the better I like them.
+1 on that...My G23 came with the Trijicon inserts in the Glock mounts. They work well for me but I don't think you will find anything brighter on the market than the TruGlo Fiber Optics.
I like the MEPS, they are more opaque for daytime shooting too. I prefer Trijicon for night but the MEPS aren't bad either.I went with Tritium Meprolights on my g23 when I bought it Saturday - they are very noticeable in the dark