It depends on the sim or family that I am making as to how I name them. Sometimes I start with a name and make the sim. Sometimes I do go with a theme depending on the story and will look up names on naming sites. I have favorite names I use frequently in different saves. I've occasionally asked my hubby for a name suggestion. I rarely use the randomizer but did recently for two bad guys that I really didn't care about the names. I try to avoid naming sims after people I know in life and recently changed a townie name because of the name association for me.