I schedule my releases 6AM CST every day, but I mostly write my chapters in the evening to wind down. If I haven't finished with the chapter, it'll be a random upload time, but always before the day's over (for me). Sometimes I'll manage to write an extra chapter on the weekends as well, and those I just release when they're finished.
The best schedule, in my opinion, is one you feel manageable in sticking to and being consistent with. If that means one chapter a week, that's fine. The predictability helps readers know when to expect your next update. Though, don't expect to grow your audience very quickly like that.
You have to consider your goals as well, however, in making your schedule. If it's just a hobby that you pick up whenever, schedule doesn't matter. If you're writing for yourself and just putting your work out there, a schedule also doesn't really matter.
However, if you're serious about writing, it's essential to create a consistent schedule. And if you want to get known, you want exposure ASAP so multiple releases every day until you build a good following would be best.
This unsolicited writing advice has been brought to you by your local happy and vain writer.