
The original Kirk and Spock are not "opposites" like they presented them in the JJ Abrams movies. They have the same sense of duty and ethics, they often spent their free time together, they understand and like each other as people
I think thanks to the Kirk Drift and Spock Drift, people often seem them as "Logic and Human instinct", but the original characters are way more complex. They even have a similar sense of sarcastic humor at times.
The JJ Abrams Kirk and Spock are called friends, but you don't see them as people who actually like each other.