Can I split the difference and say I liked Star Trek (2009), but I don't exactly like the variant characterizations of Kirk and Spock that the movie led to. I thought it was interesting to see different actors bringing something different to the material, but overall I think the issues with those choices became more apparent as the Kelvin Universe movies progressed.
To me, the biggest difference between Shatner's Kirk and Pine's version is that Shatner's Kirk feels a compulsion to be in the center seat. He wants to be there to affect change, and doesn't feel right when he isn't. Conversely, given the change to the timeline and Kirk's upbringing in the Kelvin-verse, Pine's Kirk is a bundle of daddy issues and spends 3 movies questioning whether he should be in the captain's chair. And, to me, by Star Trek Beyond I was tired of Kirk's ambivalence about whether he should be on the Enterprise.
With Quinto's Spock, he's a much more emotional character than Nimoy's, and I don't exactly think he gets the balance of it right. I think Ethan Peck is much better at finding new nuances to Spock than Quinto did.
Moreover, my biggest gripe about the characterization is that by the end of ST09 both Kirk and Spock know they have a destiny together aboard the Enterprise and the story should have progressed to them having to deal with what that means in new and different ways, instead of rehashing whether or not they should be there and the ups and downs of whether or not they can be friends.