I only caught the voting, but it's good fun, I enjoy it, and it evolves over time with a greater variety of tastes and cultural preferences. I still don't think France deserved to came last though. I mean it's not Brel, but apart from the fact that they sang in French and thereby stopped most viewers from appreciating the not-very-profound satire on consumerism, it just wasn't that bad.
As to those who say it's rubbish and should be scrapped, well just don't watch it. I think that the UK expects that we have some sort of right to win it, but we're just an archipelago off the end of the continent which is as culturally idiosyncratic as everywhere else.