If you are looking at flying in the UK, train in the UK as the airspace is busy and the RT quite anal at times. A quiet airfield in a warm country in the middle of open airspace won't reach you to cope with being lost in poor weather banging towards Luton's TMA.
ha ha, you make me laugh!
How about a 5 runway airport 17 miles from LAX and another 30 in a 30 mile vicinity! Oh, and don't forget the haze, mist, murk, marine layer, etc etc...
Seriously though, I work away too, and I went to the USA and did mine in 5 weeks - zero to 64 hrs....back in 2000....You'll also save a packet in costs - pound for dollar at least, for better equipment.
Not "dissing" UK flying schools, but for someone who has the time, I would seriously go abroad as nothing in the UK can compete.