It thinks I am Japanese. Tiger Front Row did not.
It does not show cover art for shared sources. Tiger Front Row did.
When I am fast-scrolling down a list of items, and I see the item I want, and so I let go of the button to stop scrolling, I go way past that item as the list slows to a stop. Tiger Front Row stopped pretty much immediately, on or near the thing I wanted.
It does not have any way to repeat. At least with Tiger Front Row, I could use my (non-Apple) remote to tell iTunes make the currently playing playlist to repeat. I'd hit play in Front Row, then hit the button to call my "Repeat" AppleScript.
I preferred the Tiger Front Row.