Where is the best place to open a Roth IRA?

I’m 22 and looking to start a Roth IRA. I have been comparing online accounts from Fidelity, Vanguard, and T. Rowe Price. I don’t have much to start with, but would like to contribute monthly. So far I’m leaning heavily towards the Vanguard STAR fund, with $1,000 to start, no fees, and could upgrade to their Target funds when I reach $3,000. Would this be a good choice, or are there any other suggestions I should be looking at?