Well many things come in to play when buying tires. It does not matter what brand you go with cause every brand says that they are the best. So you need to be looking at the facts. Look for the Treadwear, Traction, and Temp.
The treadwear is a numeric rating that describes the life of the tire or wear rate. You should also consider how soft or sticky the tire is. The lower the number for treadwear the stickier the tire. The stickier the tire the less treadwear you will have. A tire with a rating of 300 will wear twice as long as one with a 150, but the 150 will stick to the ground and be more fun.
The traction is a letter grade. ( AA, A, B, C with the AA being the best ) Now remember that rates on the tires traction capability during a low-speed ( 40 mph ) straight-line braking test on wet pavement. This does not address the cornering ability. Also note that the grade of AA has been in place since 1997 and applies to tires that have been introduced since then. An A grade on an old tire is the best you can get.
Temperature is another letter grade. ( A, B, C with A being the best ) The temperature represents the tire's resistance to the generation of and its ability to dissipate heat. Heat is the tires worst enemy. Speed ratings are as followed
Rating MPH KPH
H 130 210
V 149 240
W 168 270
Y 186 300
ZR >149 >240 and so on....
Any thing that was faster than a V got a Z rating
"Remember everyone," Tires are the only thing that is keeping your car on the ground and to me is the most important factor you need for your car. Hope this helps.