For the most part, I prefer the stuff out of the US. The boompty boompt of Chicago, the sexy soulful steez out of San Francisco. Fucking luverly
But as Bob D said, depends on the sub-genre. I prefer my tech house from a mixed bag, ze Germans first and foremost, but Detroit too.
Progressive house mostly from the Euros.
The French can be a bit naff, but I do like some of it