Having tried several video editors (Trial version of Sony Vegas and bought version Pinnacle 11) I find the quality is often nowhere near as good as expected, even on highest quality setting. Strange thing is for example when saving in .wmv the best results I get are from the free Windows Movie Maker!
Its a shame WMM is otherwise pretty useless as it often freezes, has limited editing facilities, etc. But when it does work the wmv files are definitely better than Pinnacle (which is not cheap)
I'm at a loss to understand why an expensive product like Pinnacle 11 cant match the free WMM!