Dx3s for me. Love the radio. Weighs nothing. Never had issues with signal at any distance. Love the telemetry, motor temps at a glimpse. RPM/Speed sensor doesn't do as well as it should but is nice once calibrated. Easy screen navigation, easy binding, just plain easy.
+1 on the temp at a glance. not to mention the adjustable high temp alarm. i agree the rpm/speed sensor is a little dodgey, but it works well enough for a ballpark speed when gearing. best way i found is on the bench/car stand. gives pretty accurate readings this way provided you entered the right conversion value. plus i like to see the needle moving in the telemetry screen! more of a novelty i guess but im amused. heres a photo of where i got it mounted, has worked well.