Sorry to hear about your troubles....that really sucks! I have lived in both scottsdale and miami, and I choose Miami.
The humidity isn't a problem if you live on the water,
the mosquitos aren't a problem with the salt water either, (only after it rains and there are puddles)
scottsdale is really nice, but it's very conservative and really BORING
Good luck bud.....and get in touch if you pick fort lauderdale, you're welcome to come out on my boat anytime
(I'll use any excuse to take my boat out!
)
take care