Catie,
I think all your suggestions are perfectly acceptable. Native speakers naturally use a variety of ways to express the same thing. I don't see any particular example being better than another.
As regards British speakers, we normally use the word 'holiday' instead of 'vacation'. I think US English has borrowed the word from Spanish. And I just like to add that almost 100% of US language is understood by British speakers, and frequently US terminology is accepted in the UK.
For example, about 100 years ago the US and UK used the word 'mad' differently. In the UK it meant 'crazy', whereas in the US it came to mean 'angry' as well. Both these meanings are now accepted by British speakers now.
Iain |