Nobody has "best of breed" for everything.
That really depends on how you define "best." If you mean the fund with the highest expectation (in an objectively defined statistical sense) of coming closest to matching market performance after fees, Vanguard does have the best index funds because it has the lowest fees.
Vanguards lifecycle funds are essentially composed of various proportions of its own index funds with addition management fees. One can also just buy the index funds in the same proportion that the relevant lifecycle fund does. But most people needn't bother.