Oh, well we don't get to compare those accents much. Trevor Noah when he first started playing in the US had a very clear South African English accent as opposed to now when he sounds a lot more American. John Oliver is who I think of for a classic "British" accent, but having never visited the islands, I wouldn't know the difference between a Yorkshire accent and a London accent, and as I understand it, London even has multiple accents

But there's a distinct tonal shift between Brits and South Africans. The SA English speakers are more high pitched and variable in their tonality making them sound "happy." The British English accent is more monotone to my ear, which sounds "mildly depressed, just waiting for the rain to stop for two days in the summer." Which is extremely English.