The Dave's Metal Works oversized safety is the one I prefer the best. The TTI one is alright and feels similar. I didn't care for the Roth one at all. It was way too big.
Keeping your finger off the trigger is certainly the most important thing. However, I use the safety when chambered and slung in the field. Murphy has a tendency to sneak up on you and cause some fluke thing to occur where a buckle for a pack gets into the trigger guard, leaning the rifle/shotgun against a tree/rocks and it dumps over and somehow something ends up pressing the trigger. Reaching for the gun in the dark and your fingers end up in the trigger guard is a huge issue. Add the adrenaline of a hunt or a bump in the night and peoples fine motor skills go to crap. Plenty of injured and dead hunters can attest to that happening. I guess the dead ones can't attest to much. Bumps in the night in the field are pretty common. In your mind its either a Skinwalker or a racoon.
Even for a handgun, I'll keep the pistol in its holster to prevent any fumbled fingers getting into the trigger guard in the dark. Be it on my night stand or tent/pack/truck camping.