i can't remember the time i really got seriously attached to. I mean, sure XCom2 i spent a fair few hours lovingly crafting my rookies and making sure every one of them came back alive (you can find a few of my character creations on the PCGF). Generally i like to get a set of random rookies and see how they shape up. unless they are a bunch of absolutely bland bunch of individuals, i might modify them to look appealing or add one additional feature.
of course, being a vain person, the main PC character of any game is my number one person. I spend the time creating my characters like in Mass effect or in skyrim.
But away from that, its got to be the ladies right? who do you want to be your squeeze during those dark times? Ask me for specifics i can't honestly say really. Maybe triss merigold from W3, tali in Mass effect etc. But more then likely if i had the choice to pick i sort of freeze up. hell, my Stardew valley game literally came to an abrupt end when i couldn't decide who i wanted in the villiage to be my digital waifu. So i did the most obvious thing and stopped playing. i'm probably thinking too deep into this.
But are there any other characters? I dunno maybe Nick valentine from fallout 4. Big respect for him. Dog meat as well i suppose.