The Kit Kats looked pretty similar so it would have to be done to a taste test.
The UK Kit Kat was crispier and very mouthwatering. The US Kit Kat had a gritty taste, and undertones of powdered milk and was certainly not mouthwatering.
A clear winner here for the UK Kit Kat.
The Overall Results
Only one US chocolate bar beat the UK equivalent (Milky Way was better than the UK Mars) but overall, the UK chocolate bars got the thumbs up.
The favorite with the whole group was the UK Crunchie.
Second place went to the UK Kit Kat.