I will, at some point, when and if my house here in Louisiana ever sells, be moving to Arizona (have an offer now but the financing may be iffy

.)
Anyhow - I will be moving with my 14 year old granddaughter (who has always lived with me). She has been active in the band for the past 3 years and loves it! She enjoys school and does well but band is very important to her. She will be starting high school this year - so with a new home, new town, and new school I am hoping that I can make the transition as painless as possible. (Or at least less painful)
The areas I am considering are Peoria, Surprise, Gilbert or Glendale. My budget for a house is ~ $300K. I have been looking on-line and believe I will be able to find a house in a nice community for this price. I may look for a part time job after we get settled but at this time my priority is the neighborhhod, school, and the band.
I have already checked out the schools in the above areas and find most to be very good - but it has been almost impossible to get any ideas of the bands - either their web sites are lacking, the band directors all claim their bands are the best (and I wouldn't expect that they would say any less!).
Many of the schools are so new in many places or rather difficult to get opinions so I was hoping that someone that reads on here would perhaps have an opinion. Which high school has the best, most active band - in your opinion or comments/discussions you might have heard?
I will not choose an area based soley on a high school band but if it is a toss up on areas then schools and their band will help me make a more informed decision (and may make my life just a bit better and that of a 14 year old!)
Thanks for any and all opinions.