For the following distribution methods what settings would you choose for exporting video on a Mac and a PC (different formats for each platform are expected as PC doesn't have quicktime be default)?
I'm trying to figure out what setting to suggest to users who know nothing about video editing what settings to select when exporting videos. Users are on all different age machines.

The distribution methods are: Email, Web, Video (web) streaming, YouTube, DVD, and Full quality

The settings to be preset are:
File Format: (MP4 etc.)
Video Format: (H.264 etc.)
Frame rate:
Key frames:
Data Rate:
Resolution: (6008 x 800 etc.)

Thanks for you help and input.