I'm quite a fan of Videogames Awesome, myself. They have a brilliant setup unlike anybody else I've seen on youtube (except for one or two people who used to watch them, then decided to copy their setup). They not only do Minecraft but also plenty of other games. Its made by Fraser Agar, Canadian extraordinaire.
They also have serverwide Minecraft build challenges in their private server which turn out some amazing things, and they stress all legitimate item collection, so that makes it all that more impressive.
The Meaning of Life, the Universe, and Everything.
KurtjMac is my favorite overall, simply because what he's done with his channel inspired me to get off my butt and start my own channel - though I tend to watch more general gaming channels than strictly Minecraft oriented ones (have to say my top 3 gaming youtubers are HCBailly, Dodger, and KurtjMac - though there are several others I watch, these 3 are imo the pinnacle of their respective niches)