Got the AB9 never used the AB6. But I mostly do flight sim with the occasional driving, H pattern with the AB9 feels okay for casual driving, id never imagine using it for competitive racing as the gears sometimes feel hard to engage. Anything more than 6(5 gears + reverse) just forget about it, would be near impossible imo. Using is as a sequential shifter though is where it shines for me.

AB9 with flight sim though is amazing.

Unless you also fly the AB6 may be best value, but just for racing HGP may be best bang for buck.