(answering for the show not the books because you specified got. my answers for asoiaf are different).
The first character I fell in love with: I legitimately don’t remember. probably ned tbh.
The character who is my ‘baby’: theon ofc <3
The character who I do not understand: umm. hmm. I guess I don’t quite understand what they did with robb in the show.
The character that I think the show ruined: jaime, cersei, catelyn, most characters tbh
The most attractive male and female character: off the top of my head probably robb for male characters and either talisa or margaery for female because they’re both stunning and I can’t decide between them.
The character death that was the worst for me: ned probably? I just completely didn’t see it coming and I was so heartbroken. but then again drogo shattered me just because of dany’s reaction. in a different way I thought that talisa, ros, jojen, irri and doreah’s deaths were all unnecessary twists added in for shock value and I didn’t appreciate them (especially the hyper-sexualised offscreen nature of ros’ death). oberyn’s was the hardest to watch because of how graphic and sudden it was.
The character that is the most like me: sansa (imo)
The character I think the writer(s) love: obviously tyrion and probably jon snow and dany as well
The character that I just want to be happy: THEON AND SANSA FOR THE LOVE OF GOD (but also, you know, most characters)
My four favorite characters, past or present: theon greyjoy, sansa stark, brienne of tarth and margaery tyrell
My four least favorite characters, past or present: ramsay bolton, jorah mormont, walder frey and (of course) joffrey baratheon