Often times, people associate Sumitomo as a generic tire. In reality, quite the opposite is true! Did you know that Sumitomo is the Japanese subsidiary of Dunlop and traces its beginnings back to 1909? In 1997, Sumitomo and Goodyear formed a joint venture in which they agreed to manufacture tires for each other as well. Sumitomo produces many different types of world-class, affordable tires.
I've personally had very good experience with the Sumitomo line on my own vehicles. I used the Max Performance Summer Sumitomo HTR Z III tire on my BMW M3. The reason I chose the tire was because of how it performed against other value-priced Max Performance Summer tires.
Sumitomo HTR Z III
Sumitomo Touring LS T
If you don't have a sports car or need high performance tires, keep in mind that Sumitomo also makes all-season options with long treadwear ratings. If this is more the type of tire you're looking for, take a look at their Touring LS T and HTR A/S P01.
If you're looking for a great tire at a great price, be sure to take a look at the options available from Sumitomo.