i'm not sure anyone will give you a "best fuel" but there are some really great fuels depending on your rig, and needs. i use Torrco and VP and have have no complaints about either. byron's 20%, sidewinder 20%, (and while i don't like it) top fuel 20% are all good options ! ask 20 nitro guys about fuels, you will get 20 different reason's why they like their brand. racers like one brand, bashers like another. i have been running VP 20% for the last two years and love it!
easy to tune with VP, great horsepower, and lubrication ! (imo)