Hehe, I'm making Hunger Games Sims too! I've got
Peeta all sorted. I'm going to make him Good, Artistic, a Natural Cook, Friendly and a Light Sleeper. Good and friendly go hand-in-hand, he's clearly a Natural Cook seeing as he's the son of a baker and in the books he's always baking people things (
) and he is artistic for obvious reasons. He is a Light Sleeper because it is mentioned in the books and the Catching Fire film that he has difficulty sleeping since the Hunger Games. I'm not sure about his LTW. I'm leaning towards Surrounded by Family.
I think
Gale should have the Brave, Loves the Outdoors, Rebellious, Athletic and Family-Oriented. I was thinking International Super Spy as LTW.
I wasn't that sure about
Katniss. At the moment I was thinking of Brave, Family-Oriented, Brooding, Light Sleeper and Good. I was going to include Rebellious but then I remembered that Katniss often denies that she's trying to lead a rebellion or trying to be a beacon of hope, even though she is. I have absolutely no idea about the LTW.
Finnick would be Angler, Good, Irresistible, Loves to Swim and Charismatic.
Prim would be Good, Family-Oriented and Neat. She gets three as she'd probably be classed as a child in game.
President Snow would be Evil (obviously), Charismatic, No sense of Humour, Mean Spirited and Coward.
I think
Effie's traits would be Star Quality, Diva, Perfectionist, Ambitious and Social Butterfly.
Haymitch would have Slob, Loser, Inappropriate, Commitment Issues and Grumpy.
I totally agree with your suggestions for Johanna, Rue, Wiress and Beetee, Luna, Zaki and Eld.