Been to both actually.
And personally I wouldn't go to either spain or FL.
I did my PPL in FL in the allotted 3 weeks.
I did though have to sort a few issues out which was due to training in the US while doing my CPL and FI ratings especially the FI.
While working as a FI I then had to sort out quite a few US trained pilots. There were some goodun's but the majority had to have re training.
RT was a major issue and also attitude flying and emergency procedures.
And immigration is a huge issue, if you get knocked back once you are stuffed for the rest of your life going to the US all because some low IQ moron on the border doesn't like the look of you. I know two commercial pilots that missed out on jobs because the type rating was in the US in DC but they were banned after a previous visit ended with the next flight back.
Basically you won't know what's wrong with your training until you go to the next level and you discover how many holes you have in it.