I'm a British nationalist and get annoyed at the way Americans take some of our words and cannabilize them (e.g. calling football 'soccer' and just generally 'Americanizing' our language). It's called the ENGLISH LANGUAGE for a reason, not 'American English', and also stop making 'American English' the default language on computer packages marketed in the UK. Also, I don't like the way a lot of Americans seem to think that they are the greatest nation in the world, I wouldn't be so presumptuous as to say that the UK is (we have plenty of problems ourselves, thanks to Gordon Brown and New Labour...), but Americans (especially on topics such as World Wars 1 & 2) seem to think that they saved Britain's ass in everything and that we would all be communists or under Sharia Law (just to clarify I am tolerant of other races and cultures) if it wasn't for them. THIS ISN'T TRUE! The Americans are in a way not as good a country as some European ones (despite the bloody EU), and the US President is NOT the most important person in the world, neither is the US the most important country in the world. Important yes, but still extremely big headed as a nation (I apologize for stereotyping but it is pretty much true, even though there are still plenty of Americans who may not feel this way, most do make their feelings clear). Anyway, sorry about the rant (even though it's true).
However, I feel that the Americans are an alright nation and do have good ideas and things that come from there. E.g. I hate cricket as well, and would love to see proper baseball (even though it's based off the BRITISH game rounders), but as a rugby fan aren't too keen on the butchered version that is American Football. Personally I would quite like to live in New York or at least tour the country and visit every state. I went to Florida on holiday last year and was amazed at how friendly everyone was, we got talking to an American couple at the Kennedy Space Centre, something which would be unheard of in the UK (mainly because people south of Yorkshire aren't that friendly a lot anyway, note though that I am originally from a place south of Yorkshire).
Just to wrap it up as my comment is getting overlong (most I've ever typed on this site actually), I feel that the Americans need to remember that they wouldn't exist (at least not in this way) if it wasn't for Europeans in general and the British in particular, but that as a nation the USA is alright and just needs to be less bigheaded on the global stage. Plus stop invading places like Iraq, at least until there is proof of WMD's... sorry, couldn't resist a final jab at Bush (what a bastard he was, as a Brit I wanted Obama to win).