I'll just throw my vote in for OpenElec. But by the replies you've already gotten, there really doesn't seem to be a clear winner.
I actually have two RPIs, Raspbmc seems to corrupt more on one of them. I stuck with OpenElec because it works great on both. In fact, to prevent corruption of the SD card, I followed a tutorial and have the data on a USB stick, so the SD card just holds the system, only gets written to on a system update.
I actually have two RPIs, Raspbmc seems to corrupt more on one of them. I stuck with OpenElec because it works great on both. In fact, to prevent corruption of the SD card, I followed a tutorial and have the data on a USB stick, so the SD card just holds the system, only gets written to on a system update.