On my Paragon:
Liara because I just always liked her, liked her commentary and thought she looked neat.
Mordin because I just always liked him, loved his commentary and thought he was neat looking.
Tali instantly because she looked, her racial gear is easily some of the most definitive looking gear in sci-fi for me. She looks awesome. She sounds awesome. She's funny.
The only reason I didn't use the above three, at any point, on my Paragon, was because the story forced me to act otherwise.
My Paragon romanced Liara and saved Kaidan.
-
On myy Renegade:
- ME2 - Kasumi and Miranda.
My Renegade didn't like Aliens (killed the council, made Udina leader, etc) or synthetics (they spaced legion in ME2). Always sided with Humans when they could. Only used Humans unless the plot made them do otherwise. That's why I used the characters I used. I might have almost used Jack, rather than Miranda (I just didn't get anything out of talks with Jacob, he was too Vanilla) but I just didn't like her attitude. ME3 and seeing how she grew actually made me regret that, because what she evolved into in ME3 was exactly what I was looking for in her in ME2.
My Renegade didn't really romance anyone, though they did sleep with with a different Human character every single game.
-
On my "I don't use Blue-Paragon or Red-Renegade options, even if they're open, and choose whatever I feel like at the moment' playthrough?
This character didn't romance anyone . . . but in ME1 we helped Shiala and in ME2 Shiala kissed this version of my Shepard and suggested the possibility of a date/relationship when the whole ME2 deal was done with. That never happened, and, outside of one e-mail in ME3, this Shepard never heard from Shiala again.
Ashley shot Wrex. Then Ashley died.