How do I want a webcomic to work? Reliably.
Seriously, whatever your update schedule is, STICK TO IT.
I have followed webcomics with bad art and good writing, and webcomics with bad writing and good art, and on very rare occasion comics with good art AND writing. I've seen brilliant page design and I've seen crap. But in all cases, I've seen that the one, constant difference which defines success more than anything else is a steady, reliable update schedule.
Let it be weekly. Let it be twice-weekly. Let it be MWF, but whatever you do pick a schedule and STICK. TO. IT.