ideally: I prefer later with no bugs
realistically: even if it's later, it will contain bugs. That's the fate of software

But I voted later with no bugs, hoping that all huge bugs have been killed and we are left with smaller and not too problematic bugs.

Then it depends on what kind of software/hardware I'm buying: a device such as the N900 upon which I may rely for work, I want it to be rock solid, on the other hand I can live with a few bugs in whatever game or non-essential electronic gadget...