The latter might be fun for chatting during a coffee break, but they consume resources while providing little of value which ultimately means more work for you.
Also there's a huge difference between "annoying personality quirks" and the toxic a-holes who are the usual manifestation.
As it turns out most devs are somewhere between 0.8x-1.2x. With a few 2x and 0x outliers. In many roles a 0.8x who plays well with others is vastly preferable to a 1.2x who cannot work as part of a team.
Unless you are at the most prestigious, high paying, selective firm.. then maybe you have possibly higher performing people, but by your selection process they will also be clustered themselves.. just on a different range of the band.