Why don't you make one, and update this thread every 2 weeks? Currently it is at about:
America:
SSBB: 3.8M
GTA IV 360: 3.7M
MKWii: 2.5M
Wii Play: 2.2M
GTA IV Ps3: 1.9M
CoD 4 360: 1.6M
Wii Fit: 1.2M
Rain 6 Vegas: 1.1M
Super Mario Galaxy: 1.1M
M&S: 730K
Japan: (Not the top, only relevant ones for WW consoles. MHF in due to being first.)
MHF2: 2.3M
SSBB: 1.7M
MKWii: 1.5M
Wii Fit: 1.4M
MGS 4: 600K
Wii Play: 400K
SMG: 200K
Others (bit estimated, not very accurately done.)
GTA IV PS3: 2.1M
MKWii: 2.1M
GTA IV 360: 1.9M
Wii Fit: 1.8M
Wii Play: 1.7M
M&S Olympics: 1.2M
MGS 4: 800K
SMG: 800K
Worldwide:
MKWii: 6M
SSBB: 6M
GTA IV 360: 5.5M
Wii Play: 4.3M
Wii Fit: 4.1M
GTA IV Ps3: 4.0M
SMG: 2.1M
MGS 4: 2.0M
M&S: 2.0M
Call of Duty 4 360: 2.0M
Halo 3: 1.1M
This list is largely incomplete, and just the most important. I made it in 10 minutes max, so don't expect it to be totally correct neither.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS
