I'm biased but it has to be Belle Vue's Hyde Road. For me it was the home of British Speedway. Here's why:
* Purpose-built for speedway
* Never closed during the War
* Some of speedway's greatest names donned the ace of clubs - Parker, Craven, Mauger, Fundin, Collins
* Great, great race track
It had the heritage, the glamour and fantastic racing. I'd go as far to say that its demise was probably British speedway's biggest loss.