Well, MSI is the world's largest seller of video cards. Maybe it's a testament to quality? (I know sheer numbers don't mean anything but it has to account for something).
A lot of people love eVga/BFG for their warranty and the step-up program(eVga). I think you can't go wrong with MSI/BFG/eVga/Asus/XFX. Get whatever's cheapest or has a better bundle. (Most people I know run XFX nVidia cards and Club-3D Radeons, if that helps. Never heard anyone having video card troubles. Only defective products I ever hear of is RAM around here.)