Maybe take into consideration if you want to fly light aircraft at some point in the future once your qualified and working commercially as well.
I did JAA all the way and I have a few friends that went FAA initially then converted. They never lost their licences (sorry certificates as they call them in the US). Also their ratings are for life I understand eg: floatplane.
Now with an ATPL and 3000 hours plus on an Airbus my single engine and multi engine piston ratings are long since gone and I will have to go back to a flying school and shell out 150 quid an hour for god only knows how many hours to bimble around plus get an examiner to do a skill test. Lord only knows how much it would cost me on top to get the single pilot IR back as well to keep me legal should I wish to climb above the clouds and see the sun. Whereas under FAA I could pay a fraction of that for a refresher when I am there on my holidays or working and do the BFR as required. The yanks will no doubt transfer over all of my JAA ratings and IR as well which could come in mighty useful at some point if you are offered a gig on an N reg.
Well thats how I remembered it from when I was out there doing some hour building many moons ago but perhaps things have changed since then.
I wouldn't be basing my decision on the above solely but it might be worth taking into account.