I really think Sage is the best of the love interests in terms of being a love interest. The only real fault she had was still trying to fuck Chad after you confirmed the cheating. Other than that, she's super comfy to be around, and has the most "girlfriendy" vibe to her.
Bella still the best, tho.
100% agree with you about Sage and i'm not even on the Sage route. Sage is literally the most down to earth "normal" girl out of all the LI's and yes that includes Jill who has that "holier than thou" attitude.
Maya is the submissive doormat
Jill is the gullible goody two-shoes
Bella is a bundle of mysteries
Josy while drama free was always just "there", kinda feels like she never got her own arc in the story so she feels like a plus one and not a real romance option.
So yeah if i had to choose one of these girls to date right now at the current release out of all the LI's it would definitely be Sage but things are subject to change, obviously.