Where does this myth come from that Fidelity and Schwab have better websites or better customer service than Vanguard. I've not seen one scrap of evidence for this, and in fact my personal experience is the opposite. Vanguard has the better website and better customer service. And they certainly have better funds, cheaper costs, e.g. free to trade Vanguard mutual funds, and vastly better alignment with client interests.
I've had a Vanguard account for at least 15 years and a Fidelity account for seven.
I find Fidelity's website to be much more user friendly/intuitive than Vanguard's. I also find Fidelity's administrative task to be much more streamlined and Vanguard's to be cumbersome.
I recently moved my Vanguard accounts to Fido.
If Vanguard ever improves their website I will be back in a flash.