I like all of the characters pretty much. These are my favorites:
Burnham - interesting. it's a battle between her humanity vs her Vulcan upbringing.
Lorca - intriguing, fascinating, charismatic.
Stamets - no nonsense, integrity overload, smarts, love these types.
Tilly - cute, bubbly, and relentlessly positive
Not a big Saru fan, though. Whiney little bitch, though hopefully, he is growing out of it.