I voted cockney, which is strange as my own Estuary accent (the English accent that's the most common on the BBC at the moment, used by Jeremy Clarkson, for example) is just a trade off between that and received pronunciation ("posh"). But I don't like pure cockney accents.

Of that list I like the Irish and Canadian the most. Multicultural London English (MLE) is quite irritating, perhaps because it's a hybrid of accents from different countries, just like another highly maligned accent from the UK, Scouse. Also because we hear it far too much, as elements of the media have decided that it's how all young people speak now, quite insultingly.