Depends on what your looking for, how much you want to spend, concealed or open, cordless or with a cord, etc. It also depends on if your looking for just a detector or a detector and jammer. Every radar detector has their own strength and weaknesses.
I believe most people run either the Valentine 1 or Escort Passport 9500i or 9500ci. I have had both and have positive and negative feedback about them. Those all have a cord but can be concealed. As for cordless I believe the most used is the Passport Solo S2. I have no experience with jammers so can be of no help there if that is what your looking for. Below is a site which can be helpful
http://www.radarbusters.com/?source=googleaw&kwid=radar%20detector&tid=Exact
I believe most people run either the Valentine 1 or Escort Passport 9500i or 9500ci. I have had both and have positive and negative feedback about them. Those all have a cord but can be concealed. As for cordless I believe the most used is the Passport Solo S2. I have no experience with jammers so can be of no help there if that is what your looking for. Below is a site which can be helpful
http://www.radarbusters.com/?source=googleaw&kwid=radar%20detector&tid=Exact