It's a foundation year, go to the university which you want to study at after the foundation year. Transferring after foundation year is possible but universities can place some odd requirements on you e.g. needing marks much higher than your original university's pass grade. In some cases they won't really accept other foundation years.
I know quite a few people who originally intended to transfer after their foundation year but the large majority remained and only a couple actually transferred.
In terms of actual quality, for top up foundation years this is going to make absolutely zero difference. For conversion foundation years I also wouldn't worry too much, neither are difficult to pass.