It's Personal

The best trigger is the one you like and you shoot well.

That might not be the same trigger as the person standing next to you.

A light trigger will disturb your aim less.  This is why some high-end rifles have set-triggers.  This is why Savage made the Accutrigger® and just about everyone else followed suit.

The problem with a light trigger is it's easier to make the gun go off when you don't want it to.

This is why set triggers are usually very heavy until you pull the set (which is really just partially pulling the trigger to the very edge of the sear).

This is why the Accutrigger® has a Glock-like trigger block in the middle of the trigger.

This is why SIG did a, voluntary, recall and upgrade to the P320; because the trigger (not the trigger pull) was heavy enough to have enough inertia to set the gun off if it fell just right.  A lighter trigger and improved firing pin block cured THAT source of unintended discharge.

So, go heavier?

Go too heavy and your disturbing your aim pulling against the sear.  Accuracy suffers and you stop shooting the gun.

Most people have a sweet spot between too heavy and too light and it's a preference thing about how much.

The pistols I shoot best break in the mid 6-pound range, or less.

But the weight of the trigger pull isn't everything and when you've got your adrenaline going, you're not really going to notice.  Do a 2-gun match and you'll see what I'm talking about.  The people with the light target triggers often miss more because they're pulling way harder than they did on a square range.  Until they get used to the experience, of course.

Other factors:

How long is the take-up?  Does it even HAVE a take-up?

How gritty is the trigger?

Does it break at the same place every time?

Does it break at the same pull every time?

Is the break crisp or mushy?

I like a smooth take-up and a crisp break, though I don't think I know anyone who likes a mushy break.

With take-up, grit, creep, and mush... you can still have an atrocious, but light, trigger.

Without them, you can have an outstanding, but heavy, trigger.

The smooth, crisp, but heavy, trigger will tend to shoot better for most people.