My choice was and would be again to go to the Florida "factory" schools for a PPL you will get a PPL in 3 weeks if you are "average" and then a familiarisation with a UK club and you are "good to go" in the UK. You will save a lot in both time and money that's for sure. One piece of advice is to find an instructor at a local club who has flown in the USA, they will be more aware of the small differences between the UK and USA and won't be biased against you for saving a small fortune by training in the sun!