Northwest and North are both headed in a good direction on academics. North has almost everything that NW has to offer on that end. The building isn't as nice, but who cares if you have a pretty locker to call home. Demographic is quite different between the schools as well. I graduated from South and have had a lot of interaction with all of the coaches in the district. If you can't go to south and get coached by Mesa and have access to the 'kids' that come back on their breaks, then your next best bet for wrestling would be North. Although, Meyers is 110% dedicated to his team and is doing everything in his power to make them a powerhouse (clinics, kids club, camps, getting good assistants on board, etc...). I can't really say much negative for the NW program other than it is extremely young (which may or may not be a negative factor depending on the coach). NW also throws all of its weight behind all of their programs and they have a stellar group of parents to work with.
Choosing a school is a tough decision. Definitely visit any that you are considering; they all have their advantages and disadvantages...stay away from East (that's the OS grad in me speaking).