To import I used 1080p24.
The sequence settings I use are: HDV 1080p24, Aspect ratio 1440×1080.
I have never printed to video, so I unfortunately cannot help in that area.
There are many possible settings for a your Quicktime file. It all depends on what you need it for: DVD, streaming etc.
I’ve never had the audio out of sync. The audio settings I use are:
48kHz
16 bit
I hope I was helpful.
Good luck.