CondemnedShadow :
I think I have settled with the SteelSeries Rival because the Roccat Kone Pure Optical is a bit too much money to pay for at the moment. I am not really interested in the DeathAdder because it does not have the customization that the other two mice have. As well as the Rival is a couple of dollars cheaper and people said that DeathAdder vs the Rival is really up to personal preference because they are both fantastic mice. Also the SteelSeries Rival has a little bit more length than the DeathAdder and I would like a good sized mouse.
Other mice recommendations are appreciated too!
Honestly, the DeathAdder is the one you should get since it is the most precise weapon out there.
Roccat Pure Optical, Razer DeathAdder, Steelseries Rival --> They're all perfect, whichever you are going to pick, they all would perform better than each other but subjectively each one will be optimal, so I'd rather choose depending on the price, shape and customization.
None of those three will let you down, so pick whichever you feel suits your style
@Soumil -- I am using Sentinel Advance II and I can assure you this mouse is very bad, it has positive acceleration and it is very inconsistent with performance, even at 800 DPI. I bought a $6 optical mouse and it performs a ton better than the Sentinel Advance II.. The reason behind that is the sensor that the Advance II is using, laser mice are bad for gaming.
Though the CM Storm Recon is more than good since it has an optical sensor with average IPS tracking speeds and good acceleration speed.