I like tutorials in the following Formats/Order.
HTML
PDF
.MOV
I like watching the tutorials done in Camtasia where the narator talks and goes through the process, sometimes you get subtle information by seeing/hearing the tutorial creator.
But ofcourse that would bring Bandwidth issues.
As for the Tutorial contents. I'd like to see an example of like how the Rat in the Rat Challenge was done, taking the 2D Photo and turning it into a 3D Model.
http://forums.polyloop.net/showthread.php?t=8134