Well if we're talking the classic then what we are talking is the Typhoon Belt worn by Rider-1 and Rider-2.
Out of the options presented here and in terms of look and shape I'd have to go with the DecaDriver which is basically the Typhoon Belt beerslammed with a camera.
Out of all of Heisei though the most classic looking belt is Arkul from Kuuga. Which is Black's Kingstone belt (itself a variation on Typhoon) but taken to a whole other level of design awesomeness.