Depends on the length of the queue. I find if I'm too far back from the intersection, cars will get up to speed and want to overtake me before I get through. If I continue to take the lane the driver behind me is likely to start honking and/or pass me dangerously. If I move over then I risk getting hooked as I go through the intersection.

So I find that it's usually safer to filter to the front at intersections. Even in the absence of a bike box I can squeeze into the crosswalk and get ahead of the lead car, allowing me to go safely through.