If money is not a consideration - which it clearly isn't, from the way you asked the question - then I honestly believe that the decision is purely up to you and your personal preference once you have been out to see each school and spoken to the students and staff there.
You'll be budgeting (I hope) for £100K in total once you've paid for your type rating and the additional costs of living overseas (plus a margin for any price hikes due to fuel price rises (check your contract!), so as long as you've got that in the bank now, you'll be laughing whichever course you choose, because they are all JAA approved.