Left - BD
Right - HD DVD
Left - HD DVD
Right - BD
Harder to tell in this one, but the left/top one seems to have slight amounts of blur and loss of detail. Though the reverse could be said as well, it varries from sector to sector.
As someone said, this title probably isnt the best to compare. It quite blurry and I doubt you could see much of a difference with its sharpness level + the small size difference.