Spain
having flown a few times in Spain and most places in the US, I would go for the US option any day. Many airfields have more than 1 flight school and if you do your research well you will get exactly what you need to do completed on time. There are some cowboys out there but not that many. If you need any advice drop me a line and i would be more than willing t point you in the right direction as i have been to the US about 8-9 times for flying and still return every couple of years to do some touring!
Good luck