A:Answer I chose the G703 because it's right-handed and fits my hand better. The G900 and G903 are a bit longer and flatter than my previous mice (G502, DeathAdder, Myonix NAOS). While the G900 and G903 have more buttons, some of them are there just to facilitate ambidexterity. I also prefer the LED patterning on the G703 with its lit scrollwheel. Technology-wise they are at the same level (same sensor, same LightSpeed tech, PowerPlay compatible), so pick the one that feels better.
