Good selection of schools!
I would try Wycombe Air Centre - I know that they did a guy's FI there about 2 or 3 years ago who was in exactly the same position as you - he had done licences in Spain but was from the Netherlands. He had a great time and even managed to teach the instructors there some Dutch so you should feel at home!
I did mine there and it took about 5 weeks (and I started in Feb). It has a great family atmosphere and is so friendly. The admin staff are great and the instructors (Caroline & Simon) make a great double act, especially during any "good cop bad cop" Q&A sessions...
Good luck!