The best courses are the practical ones. A 3 year degree has certain requirements for written work and so on, but students should be spending as much time as possible working on shows. Writing a bunch of essays about the theory of stage management is a lot less use than actually being an ASM/DSM/SM on a show.
I did my foundation degree (2 years) at one of the big London drama schools, and we spend the first term in class and the rest of the first year working on shows in each department - lighting, scenic construction, stage management, sound. The written work we did was related to the show roles, eg props lists, lighting plans. In the second year it was more show roles ('head of department'), and two industry placements.
The number of contact hours/teaching hours is very important - we were doing 50+ hours a week - not all teaching, obviously, but supervised work on our show roles.
I graduated 7 years ago and have been employed in the industry fairly consistently ever since. I would say, it's not an industry to get into unless it's what you really want to do, and even then I'd suggest getting some life experience rather than studying straight out of school. The hours are long, the work is hard, the pay is low, and the thanks and recognition are rare.