Bones he's the one I identified best with, he was the normal one, Spock was smart, Jim brought all the girls to the yard, and Scotty was the miracle worker who could fix anything. So yeah, I fell in love with the normal grouchy guy who really didn’t like all this technical flashy stuff anyway.
I also loved any scene that had Spoke and Bones together because they placed off each other so well.
Also Jim/Uhura, first televised interracial kiss FTW!
As for TNG I loved Data, he knew everything and stuff still flew over his head, also he was the best straight guy for any gag. And I adored the way he doted on his cat.
DS9, The original Dax because she rocked and Dr Bashear. (SP?)
Voyager, Janeway and Balana(sp?). Janeway because she was the strong captain but also had weak moments. And Balana(sp?) because she was as stubborn as a mule. I liked Seven of Nine for much of the same reasons I liked Data.