That's another pet peeve of mine: separating the chapter number from the chapter title. If you place both of those in separate paragraphs the TOC looks bad. I prefer placing both in the same paragraph and on the same line, but if aesthetically speaking separate lines are more appealing then I use <br /> between them.
I don't disagree... it's just that I've given up on relying on any sort of successful auto-generated TOC. I just get my hands dirty and manually make it what I want it to be.