OAT and CTC are both excellent schools. Cabair and FTE are also. However, they rely for their continued existence on the money you pay them for their services. To convince you to buy what they have to offer, they will all tell you more or less what you want to hear - which is that their training is the best, and that their students get the best jobs with the biggest airlines, and that you have more chance of getting a job after their training than anyone else's.
Well, they can't all be right. And, if you believed even half of what these four schools say, no-one who trained anywhere else would ever be employed by anyone. Patently, this is not the case. In fact, I'd guess that these four schools together probably don't provide more than 50% of fATPL recruits for UK airlines (though I don't have figures). So don't go thinking you have to go to OAT, CTC, FTE or Cabair to have any chance of getting a job.
Equally, whichever school you elect to give your business to, don't go in with the attitude that you are 'lucky' to be there, or that you owe them anything. YOU ARE THE CUTOMER!! Don't forget that. If they treat you like !!!!!, tell them where to get off. Not rudely or aggressively, but remind them who's paying - and paying heavily. It's not the school, or an airline, it's you. If things aren't right, get them changed.
Scroggs