I have used the Goodyear Eagle F1 GS-D3 and gotten about 30,000 miles out of them. Bear in mind that there were some autocrosses, a drag run or two, some extended high speed runs and then about 4 days at the "Tail of the Dragon". So its pretty safe to say they havent been babied.
I love the Falken RT, have them on my Sentra SE-R and they are great. But if you are looking for good mileage life out of them, look elsewhere.
My 350Z is currently running BFG G-Force KDW-2. Very agressive tread and so far have done well for me. Only time will tell how long they last.