[Ripplinger]

What DiapDealer said. I don't mind any method for chapter headings. I use centered most often so I guess I could say I prefer it only because I'm so used to seeing it. But left aligned is perfectly fine too, right aligned would be my 3rd choice, and not that it's objectionable in any way either.

Edit: There's also the case of 2 lines for the chapter headings, maybe number on 1 line, and the title on another line. When left justified, the 2nd line can be full left justified, but also I've seen the 2nd line indented a bit more, and even that's fine with me. I'm pretty flexible for the chapter headings, as long as it display correctly.