Hi. I personally agree with the post above. During the Nav part of my training I was recently invited by a friend to finish my ab initio training in the US. After some thought I decided to finish here in the UK (even if it does take me a bit longer and does cost me a bit more). I'd prefer to finish my training in the environment I'm going to fly in afterwards. Also, having done my RT theory and practical, I have heard that the RT procedures are a bit different over there.
This is just my personal decision. I know some FI's who have finished or done all of their ab initio in the US and some PPL's who have gone and done their IR etc over there. Each to his own, but my choice is to get my PPL over here. I've been able to buy a share in a syndicated 152, so my flying costs post PPL will be less than half what they would be if I had to hire. I'm happy to spend a bit extra getting there, as I want to be as safe a pilot as possible and I feel that the more confident and experienced I become through flying with my FI here, then the safer I should become in the long run.
Good luck to every fellow student wherever they do their training.
PD.