Re: What is the BEST trigger out of the box?
Are you interested in a striker fired (e.g. Glock) or hammer fired (e.g. Sig Sauer) ?
Sigs are noted for very good DA/SA triggers. Kahrs have a long but smooth trigger, Ruger SR9Cs have a light trigger, with good break, to me Glocks are somewhat mushy and mediocre, but many folks swear by them (and others at them).
There are many characteristics (weight, break, travel, smoothness, reset length, etc.), that almost require that a person try different models and see what works/feels best to them.
I personally prefer a DA/SA Sig Sauer trigger ... but again that is only a personal preference, and many others would like something else better. My advice would be to go to a good gun store and try some for yourself, working both the trigger and the overall grip feel, to find which works best. Actually shooting different models would be best ... but that's not always possible.
R.I.P. WCO Dave Grove ... You will never be forgotten.