And... you didn't define what "best" means to you because it could be totally different for someone else.
Is cost the major determining factor? There is a downloadable disc you can get from this forum and burn your own disc for a cost of about $1 or less for a blank disc.
Someone else might want a disc with a lot of educational information and examples... Digital Video Essentials might be the best disc for that person.
Another person might want just some very simple background information, the Disney WOW disc might be best for them.
Someone else might want a lot of technical depth, lots of patterns, and standard definition video (DVD) -- Avia II might be best for them.
There is rarely such a thing as "best" in anything... like wine or cars or women or bourbon... what's best for me might not even be worthy of consideration by someone else.