What is the best over the counter hair dye on the market?

I have brown hair with some gray coming in. I am looking for something easy to use, and give me the best results possible.|||I agree with clarke... garnier nutrisse is an awesome hair color that works really well, and doesn't have those harsh at home hair color odors... It includes a little container of avocado oil that you put into the dye mixture that helps hydrate your hair. I use it all the time, and absolutely love it... |||over the counter, you mean like box dye? |||Feria (abt. $10/box) or Garnier (abt. $8/box)|||clairol|||probably the one Divina McCall advertises as it is specifically for people with gray