TOS s3e13 "Elaan of Troyius"

better capture that shuttle. So they can escape later.

Promptly escape…

Between T'Pring, the Romulan Commander, spore lady, prehistoric babe, Chapel, La'an, Saavik, and Uhura (Kelvin)... Spock had quite the hit list.

Plot doesn't need them freed yet. Just hang out 'til act 4.

He was also considerably more popular than Kirk among female viewers, if the fan mail was to be believed.

Just read an article today whilst looking for meme material where Shatner addressed his early disdain towards Nimoy's immediate and pronounced popularity. Gene managed to assuage him of that jealousy by appealing to his ego such that talent around him would improve his own performance.

Nimoy is hot, playing a kind, considerate and compassionate intellectual that was decidedly masculine without being that kind of masculine. (and he played that character well, too.)

Did I mention hot?

Of course nimoy as Spock was popular.