I have used the following triggers and ranked them based on my experience
1. Timney 3lb single stage curved (In two different rifles). Well priced. No breakage and have not had a light strike yet.
2. Elftmann 3gun Curved. Would be first except I have had issues with light strikes since I purchased it using factory ammo such as Hornady, Remington, American Eagle, and Fiocchi. I also had a hammer break during a match (great customer service they sent a new trigger and heavier spring to fix light strikes). I went from having 2-3 light strikes per mag to have 1 light strike per 100-150rds
3. Velocity. This was my first drop in trigger. It is basically a timney Trigger in a green aluminum housing.
4. POF. Used in my PCC. Well made but has some creep.
5. Rise Armament 3.5lb. I got two of these in a trade. Probably the cheapest drop in trigger on the market. Has gritty trigger pull.
6. Fostech Echo version 1. Novelty item. Not really practical. Machining is very rough, and trigger pull is worse than any milspec Trigger.