It has Federer, Murray and, as much as it pains me to say it, Nadal and Djokovic. One is the greatest player to ever play the game, another is the greatest clay courter of all time in achievements, the other has 5 slams and the last is the first Brit to win a slam in 70+ years and is consistently challenging the other 3 throughout the year. This era will be remember, that's for sure, and as a strong one.
They're probably the most dominant top 4 of all time and not because everyone else sucks. They're just too good (Nadal and Djokovic may have horrific games but it works for them).
Being British has nothing to do with how great you are.