Sarada really seems 50-50 Sasuke and Sakura but if you had to place them as parallels then obviously she is the girl.
And yea Mitsuki seems a lot like Sai/Oro, quiet sly smartass.
Kind of hard to place these parallels anymore on the team because Mitsuki is Sasuke, while Sarada is the Sakura and Boruto is the Naruto. Doesn't meant that their clones, but it's just based on perception and actual interactions. Naruto and Sakura argue a lot, in which Boruto/Sarada do (but it's more of a friendly argument rather than Sakura taking jabs at Naruto for being a fool, or for making Sasuke feel uncomfortable).
Sarada is Sasuke and Sakura's daughter, personality wise like I said, I don't really think she is like Sakura or Sasuke. Like Boruto, she just has tendencies to act like her parent or parent(s) in certain scenario's given that they have similar characterizations but it doesn't overtake their originality.
Boruto is Naruto's son, personality wise like we discussed, he isn't like Naruto but is still the 'Naruto' of the group, but at the same time he is also being paralleled with Sasuke.
It just makes more sense to give it to Mitsuki, given that SP already chose so. I mean in the end Mitsuki will get the snakes from Orochimaru making him the 'dark' version of the team, but Sarada wants to become Hokage making her step into the lead as well. Lastly Boruto wants to do what Sasuke does so this makes it even more confusing :lol
Honestly just leaving it to Mitsuki seems like a less of headache XD
If you mean by personality sure he is still very young. Thing is he said Boruto is no Naruto yet he has his whiskers/rasengans/same color hair/his dna&shadowclones. yup he is wrong
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Also who gets along team konohamaru?
If that was your attempt at proving Naruto and Boruto are alike then you failed dramatically. He's Naruto's son so of course he looks like him, and Boruto has an ample of amount of abilities that Naruto couldn't even dream of at his age, and things he doesn't even have as an Adult :lol