Laser mice works better on all kinda surfaces. Some optical mice reports incorrectly in case of surfaces like smooth wooden area etc.
A normal optical mice sensitivity can go upto 800 dpi while laser mice has 2000 or even 3400dpi or cpi sensitivuty.
Laser mice are normally equipped with features like:
*Special gaming grade mouse feets like teflon or PTFE material for ultra smooth movement over quality mouse pads.[eg. teflon for Logitech MX 518. PTFE for Logitech G5, Razer Copperhead, Diamondback, Logitech FATAL1TY]
*Programmable extra buttons. We can set macros inside each games.[eg: Logitech MX 518, G5, G7, G9, Razer Copperhead, Diamondback, Boomslang etc]
*On the fly resolution changer. The resolution of pointer can be changed on the clich of one or two buttons on the fly, without any drivers.[eg: MX 518, G5, Copperhead etc]
*Weight adjustments. We can adjust the weigh and also balance the weight at different positions for perfect controls especially for situations like snipping.[eg: G5, G9]
*High bandwidth data paths like 16bit USB and hogh polling rate like 2ms or 1ms, with minimum delay.[eg: MX 518, G5, Copperhead]
Hope this solves da dilemma.