Heine straight 8 ledge sights are my favorites and on my g19.
On my EDC 1911 I have Springfields stock front sight and a fusion ledge rear sight with no tritium (their 1 dot rear sight seemed brighter than my front sight so I went plain).
All my berettas have WC rear sights. The A3 has the stock tritium front sight, the FS with vertec slide has a WC tritium, and my A1 compact has a gold bead.
I like having good crisp sights that I can use in low light. I really don't like 3 dot sights anymore. I like just having one point to focus on with minimal distractions. The straight eights seem to work well on glocks that still point a tad high when things speed up.