Well it just so happens I have a Matrox MilleniumII, a ATi Rage IIC, a Axle(no name as far as I'm concerned) TNT, a Leadtek geforce3 Ti200, a i845GE, and a Matrox dual head g400.
Not to mention a NEC/Mitsubishi monitor that is very sharp.
I haven't done any scientificly sound, objective...