As always, it depends, and to me it would depend on the target audience. Our western culture reads from left to right, eye trackers will also back this up, we start at the top left, and we end our "scan" at the bottom right. Those are the place where you'd put information like logos or other stuff you think is important. In some other countries, people read from right to left, this also affects their scanning pattern (starts at top right, and ends at bottom left). Windows, for example, flips the position of the start button based upon this:
The start button really counts as the logo there. I know its at the bottom right, and not at the top right, but I think it being at the right in the first place proves my point already. The fact that there is no visual clutter at the top allows people to start from the bottom (and also, since windows is pretty known by know by most users...).
So if you want to ommit the problem, use a centered logo, but I don't see a lot of those being used in many sites, like a previous poster mentioned, use it if the entire site is centered.
More proof of what I'm saying: