best format for youtube project

What is the best format for a youtube project?

Hi, Bunty,
Supported YouTube file formats

Not sure which format to save your video? Receiving an “invalid file format error message when you’re uploading”?

Make sure that you’re using one of the following formats:

.MOV
.MPEG4
MP4
.AVI
.WMV
.MPEGPS
.FLV
3GPP
WebM