i think it's all a matter of opinion. i'm 30 and my first gaming mouse was a ball razer boomslang, insane sensitivity and way too sensitive buttons 🙂 still have it here somewhere. i did have a red diamondback for a long time, but lately i've stuck to the logitech gaming mice. i'm currently using the g9 on my desktop, and i really like that.
i think it's really hard to compare mice, because you'd have to use them for a while before you really know if you like them, and it's completely individual. so far i'm impressed with the gx1000, which is an upgrade from the "rog" mx518 i had before. when i first unpacked it it felt really light and cheap, but the weights made all the difference. it has only one sensitivity switch, which cycle upwards, it lacks the downwards button. also you can't make the wheel spin freely. unless i'm missing something.