In the UK atm a lot of (tournament) players are picking up NR700's in the old colours as they are heavily discounted. When I started using them I'd not seen anybody playing with them, now they are very common. Other commonly use rackets include ARC10, VT80, VTZF, Carlton VTT (young player sponsorship), various FZ Forza (young player sponsorship), Ashaway XT900 & XT1000
My guess is that the most widely used racquets are the ones that come in those cheap picnic sets with the flimsy net and rubber shuttles.
I would have thought that in the Cab20 era, it would have been the likes of the Blacken, Cab 8 SP/DX etc that were more popular given the Cab20 was quite expensive. Cab20 was probably more popular with int/adv players but I guess it wasn't the most popular globally.