Julienne Knack. She is a Ambitions Sim, and I don't not know why I like her, but I think she is pretty, but her lifetime wish does not match to her, I think.
Bella Goth. Almost all the players like her, because her story is amazing, and it is present in every The Sims game, and her family are loved, too.
Sofia Carlton. She is a Ambitions Sim too, and she is very eccentric in her appearance, it is very pink! If it she had been created for The Sims 3 Late Night, I think she was a 4-star celebrity.
Cassandra Goth. She is present in The Sims 1 and 2, and I like her because she is very alone, a thing is very unusual in The Sims 2 (by what is written in the biographs of the sims).
Soon I will write more things here!
Note: If I wrote a work wrong, please left a message in my discussion page. (My english level isn't 3, if had the 2.5 level, I would have put!)
There's a phrase in portuguese: Eu adoro a Sims Wikia, porque aqui tem muita informação boa do mundo The Sims! (Translate: I love Sims Wikia, because here has much good information of The Sims World!)