Actually the “clean and clear look” is not necessarily the video format, is the quality of their cameras, lighting and production in general. In my experience the best format for Youtube is H.264, but if you don’t take into consideration the production phases and the quality of your equipment you will never get that kind of quality. The real secret to make your video look like perfect is to have a detailed plan (Pre-Production), making the most out of your recording by using lights, interesting camera angles, etc (Production) and finally edit your video in such a fantastic way that it look twice as awesome (Post Production).
