My biggest complaint about Sims-likes is that the visual style always looks too serious. It gives me the feeling that whatever I'm going to do with my not-Sims, it's gonna be something that makes me regret my real life.
You wanna know what I did the last time I played the Sims 2 though? I repeatedly held parties at my Sim's house and then lured the guests into a room they couldn't get out of. I also used the moveobjects cheat to collect police cars whenever a cop showed up to shut the party down. By the time I was done I had amassed around 70 urns, many hysterical immortal Sims (Sims with households can't die while visiting someone's house in the Sims 2), 4 Police cars and a fire truck.
The Sims has a mischievous air to it that tickles the devil on your shoulder and begs you to listen to them. None of the Sims-likes I'm aware of seem to have the same air.