I would say it all depends on what, where, your style of shooting, maybe your stock design, if you have a safety, and your target and distance.
Regardless of the weight there is only one answer.
The best trigger is one you use alot and after 500 to 5000 rounds, you have control to the point that you can stop your pull, so maybe you have anywhere from 1 oz to 1 lb left till it breaks, see your wind condition or target come back, and you finish your shot.