I find early better for few reasons, but primarily because not all work hours are the same. Waking up, working out, then immediately doing deep work before checking my phone, internet, or anything else almost feels like a super power. The best work hours of my day are actually spent working, and are almost never interrupted. Even if I do have to attend a late meeting or something, my brain is in the wind down mode and shouldn't need to wind back up. This means it's easier to fall asleep, and repeat the next day.

I used to do the stay up late thing, and while work did get done, it's nowhere close to what I get done in the morning.