I had the DFX and now use the V3i and the Racer. You stated that you were mostly a coin and jewelry hunter and for that purpose I'd stick with the DFX. It has many advantages for that type hunting. Many were mentioned above like coil choice, totally adjustable tone ID, etc. The Racer is a great detector, for some specific sites and iron infested sites it's got it all over the White's due to it's super fast response. That's why I mostly hunt with the V3i and the Racer although I have about ten others. The DFX (V3i) are as good as it gets when hunting freshly dropped coins and jewelry and are also excellent at pulling deep older coins. I prefer to use the BigFoot coil when hunting coins and jewelry in open areas, and I'll switch to the Racer when hunting the super trashy areas. The Racer with the 5" OOR pulls targets out of the trash like no other detector I've used. The White's with the BigFoot gets all the others in the more open, less trashy areas. I also love using the Racer in ghost towns, railroad sidings, and teardown sites. Can't really say one is better than the other. It's more a question of what works best for your type of hunting.