What is a good auto GPS in the $300 - $400 price range?

I am looking for an auto GPS and need some information. I was going to buy the Magellan Maestro 4350 (it was on sale for $299) but my friend said that he hated his old Magellan because it always used weird routes (so I didn’t buy it). I have been able to find a good deal of information on the quantitative data comparing the Magellan Maestro 4350, Maestro 4370, Garmin Nuvi 500, Nuvi 550, and Nuvi 750. I used a Nuvi (I don’t remember which model) when I borrowed one from my grandparents. I thought that the Nuvi sent me through weird routes too. Anyone have any complaints and/or praises about either model? Any suggestions of other models?