Terminal radar in the States displays 6-level WX returns, plus we have a Doppler-like system at my facility called WSP (Weather System Processor) both up and downstairs.
http://www.ll.mit.edu/AviationWeather/WSP-flyer.html
Of course, the range is limited to our ASR-9's range of 60nm, but works very well, providing TSTM and wind shear/microburst warnings. I think it takes a few years experience in ATC to learn to use the displays to best advantage, but I get very, very little disagreement from flight crews when I suggest a heading or route. It almost always agrees with their view from the aircraft's radar. Of course, I always make sure the crew know my vectors are advisory in nature only.
I probably get 10 compliments for the handling for every "I don't think we wanna do that".