My brain is a muddle of Voices....watching the US, UK and Oz versions all at the same time I have concluded that:
1) The UK easily has the best voices of the three
2) The US has the most entertaining coaches (read: great bickering and humour)
3) Oz has the nicest ever coaches but the slowest pace
4) The Oz coaches also sound really good together when they perform, the UK is the worst.
After I heard this audition below from Sam Buttery in the UK, I don't enjoy Adele's version as much anymore and prefer this one!