Hey John,
I actually don’t have a video monitor to preview things before burning to DVD so my initial judgement is based on what’s on the computer screen.
In FCP I used the DV NTSC 48 kHz sequence presets. Once I put together the sequence I exported to Compressor and used the DVD Best Quality 90 Minutes settings (MPEG-2 6.2 Mbps 2-pass for video and Dolby Digital Professional 2.0 at 192 kbps for audio).
Then I just built the DVD in DVDSP by importing the assets, putting them on a track and connecting all the necessary menus/buttons.
So as you can see I don’t really stray from standard presets.