The first Mass Effect 3 review is by a German magazine called Gamestar. Spoilers beware at the link of the review.
Gamestar - Positive
PlanetXbox360 - 10/10
EDGE - 8/10
GamesTM - 9/10
XG 24/7 - 5/5
Eurogamer - 10/10
IGN - 9.5/10
Gamerzines - 98/100
G4TV - 5/5
Cheatcc - 4.6/5
Destructoid - 8.5/10
Guardian - 5/5
Giantbomb - 4/5
GamesRadar - 9/10
VGZ - 90/100
VGW - 5/5
CVG - 9.4/10
Escapist - 4.5/5
Gametrailers - 9.5/10
GameInformer - 10/10
1UP - A/A+
The Verge - 10/10
USA Today - 4/4
Inside Gaming Daily - 9.5/10
VGRevolution - 9.7/10
OPM UK - 10/10
ZTGD - 10/10
AusGamers - 9.8/10
MSNBC - 10/10
Thunderbolt - 9/10
JPS - 9.5/10
ClickOnline.com - 4.5/5
GodisaGeek - 10/10
PSLS - 10/10
Joystiq - 4.5/5
G4MERs - 9/10
OXM - 9.5/10
Digital Spy - 5/5
Gamer Limit - 9/10
GameArena - 9/10
Machinima - 9.5/10
Pixel Apocalypse - 4/5
Entertainment Focus - 10/10
Gamestar - Positive
PlanetXbox360 - 10/10
EDGE - 8/10
GamesTM - 9/10
XG 24/7 - 5/5
Eurogamer - 10/10
IGN - 9.5/10
Gamerzines - 98/100
G4TV - 5/5
Cheatcc - 4.6/5
Destructoid - 8.5/10
Guardian - 5/5
Giantbomb - 4/5
GamesRadar - 9/10
VGZ - 90/100
VGW - 5/5
CVG - 9.4/10
Escapist - 4.5/5
Gametrailers - 9.5/10
GameInformer - 10/10
1UP - A/A+
The Verge - 10/10
USA Today - 4/4
Inside Gaming Daily - 9.5/10
VGRevolution - 9.7/10
OPM UK - 10/10
ZTGD - 10/10
AusGamers - 9.8/10
MSNBC - 10/10
Thunderbolt - 9/10
JPS - 9.5/10
ClickOnline.com - 4.5/5
GodisaGeek - 10/10
PSLS - 10/10
Joystiq - 4.5/5
G4MERs - 9/10
OXM - 9.5/10
Digital Spy - 5/5
Gamer Limit - 9/10
GameArena - 9/10
Machinima - 9.5/10
Pixel Apocalypse - 4/5
Entertainment Focus - 10/10