I actually went through ENJJPT. Unfortunately at the time, we didn't have any Canadian students, nor had they for a long time. Every once in a while they get a Canadian instructor, but no students.
As far as being more difficult.....maybe in a few aspects. As with everything, there were advantages and disadvantages. The advantages are that you get a fighter (if you want one). There are a couple bombers per class, but that is nothing set in stone. You also get a little more flight time in ENJJPT because there are no full-motion simulators. Disadvantages are that there is a little bit more politics there, Sheppard will be the last training base to get the T-6 and the T-38C. Also, if you don't want fighters, you're plum out of luck. Sheppard was a good place to be stationed though and overall was an awesome experience.