Lotar and Malitiose are one of the two Love Traingles in-game, so you can unlock their LT route, or solo routes, as both have different contents through the game. If you don't want to make Mal cry, I'd recommend doing the solo. ;)
Hmm, it’s hard to pick just one because they are all fun to write, but I am definitely partial to Saltire for two reasons:
1. I’ve given them part of the backstory of my old Pathfinder OC haha, I really love the Fey realm and stuff like that, so even if a lot of info never made it to the game, working on the backstories and settings for Saltire was the most pleasant for me.
2. Saltire’s type is someone who, due to their upbringing and experience, could easily be one of the most evil-aligned companions, but simply CHOSES not to be, chooses to exercise kindness even when it’s foolish, which I always wanted to write as I find it particularly interesting.
Okay, I've rambled enough. Thanks for playing!