Well, I don’t think anyone would disagree that the V1 is the best performing of that bunch. But to be fair it’s more expensive and harder to get at this point (usually backordered for weeks). It also doesn’t have built-in GPS so you will want to link it to your phone via an app like V1 Driver so you get the most from it. It’s not hard to do, the app connects once via BT, and then runs automatically in the background every time you turn the detector on. But still, some don’t like the idea of needing your phone for the best experience.
The R3 and Escort are solid performers and do have GPS, but don’t have the arrows telling you where you’re getting hit from like the V1 and other higher end detectors.
Based on features and price the Cobra DualPro 360 is probably the best overall value. It is basically a rebadged Escort Max 360 with slight changes and a much lower price. It does pretty well in testing by people far dorkier than me. Plus it has both GPS and the directional arrows which are pretty helpful. It’s not a long range legend like the V1, but still more than good enough for most situations. And a good starter detector I think.