May be I can help you. For some strange reason I haven't touched M&B for several months but I have watched a lot of it on youtube.
The problem with most youtubers is that they get bored after awhile but they just can't stop, because there are money involved. So they start to act childish and stupid in their videos, instead to put an end on the series.
It is very hard to find a good, mature serious player who is entertaining commentator and who actually knows what he is doing.
1. Frewd100 Let's Plays! - My personal favorite. Very good tactical skills. He generally plays like I do, may be that is why I like his Floris series so much.
http://www.youtube.com/playlist?list=PLsOPdB0VeMcw_xVE8JRhnYXyWj5dJMv8y
2. Pauleh - He is very cool guy and fun to watch, but as a player he is bellow average.
http://www.youtube.com/user/tehpauleh?feature=watch
3. SprayandPrey - Genuinely very friendly guy, but he likes to apologise to his viewers too much for my taste.
http://www.youtube.com/user/SprayandPrey11
4. Zemalf - Sometimes boring, but very matured and serious guy. I like him.
http://www.youtube.com/user/thezemalf
5. ReformistTM - He started an LP for Pendor as a total noob (the hardest mod for Warband) and eventually have conquered the whole map, so he is probably very good now.
http://www.youtube.com/user/ReformistTM?feature=watch
6. DiplexHeatedHD - I haven't watched any of his series yet, but he looks like somebody that I may like.
http://www.youtube.com/user/DiplexHeatedHD?feature=watch
And of course Malakith Skadi. Since he uploads only multiplayer battles may be his chanel is not for this list, but I feel that he deserves honourable mention.
http://www.youtube.com/user/MalakithSkadi
They ALL are good players, serious, entertaining and enjoyable to watch.