I have heard excellent reviews on the Hiperfire 24C trigger. It completely eliminates the possibility of light strikes from hard primers. I'm thinking about trying one.
I currently have the ALG-ACT and really like it, especially for the price, but I do worry about the possibility of light strikes. Although I have only had a couple.
Here is a link to the Hiperfire:
Hiperfire Hipertouch 24C Trigger- AR15 Competition