Quinto is lousy as Spock.
Urban, I felt, nailed McCoy.
Maybe it was the fault of the writing and directing like DJ says, but I never got the sense I was watching the same character with Quinto.
Similar problem with most of the other characters. Uhura was too sassy. Chevok lacked the mischievousness of Walter Koening. Clearly the fault of the writers and director.
Urban’s McCoy I thought, was easily the best impersonation, I don’t think it could have been done better.