While I agree that the 75/76 is probably the most demanding of the various schools, I wouldn't characterize it as 'worst.' It's actually pretty good; a couple of the check airmen who made it onerous have moved on to the minibus (good luck with that, guys!).

That said, you should try not to go to the most demanding course at an airline as a newhire, if you have the option. It's not like UPT or the equivalent, but don't make that kind of transition harder on yourself.