How on earth do you expect to get any meaningful response to your poll?
How many students ever attend more than one FTO? Very few, and not usually for the whole course. Perhaps if one FTO goes bust and they transfer to another, or maybe if they do the main course at one FTO and a brush-up at another.
So all you are going to get (if anyone responds at all) will be responses from people saying "I went here and it seemed OK to me". And because nobody likes to admit that they could have made a mistake, they usually defend their old school with no knowledge of the others, or, if they had a bad experience, slag it off without knowing whether any of the others would have done any better.
It might set up a nice ding-dong on pprune, but it won't be very objective evidence to assist you in making a decision.