I feel bad about fff because I really can't stand MPJ's humor or style of presentation but I know he's a great teacher. One day I'll get over it, but for now I'm just glad he's there to help!
Honestly, the appeal to me of FFF (hands down my favourite programming youtube channel) is his quirky sense of humour. Each to his own. The more quirky someone is the more polarising to their fan-base they are, I suppose.
I do like computerphile, but as a professional developer, vastly too simplified for me. I do send it to none technical friends, as it cuts out the unnecessary details to get the point across in a ELI5 way.
ChromeDevelopers: https://www.youtube.com/user/ChromeDevelopers
LevelUpTuts: https://www.youtube.com/user/LevelUpTuts
Strange Loop: https://www.youtube.com/channel/UC_QIfHvN9auy2CoOdSfMWDw
Computerphile: https://www.youtube.com/channel/UC9-y-6csu5WGm29I7JiwpnA
funfunfunction: https://www.youtube.com/channel/UCO1cgjhGzsSYb1rsB4bFe4Q
Wes Bos: https://www.youtube.com/channel/UCoebwHSTvwalADTJhps0emA