IGN has a Grudge Match going on between the Grand Theft Auto series and The Sims. Since you have to be an IGN Insider member, I cannot tell you who won the battle, but chances are high Grand Theft Auto will take home the prize.
I, myself, enjoy the Grand Theft Auto games, but won’t rank them over The Sims. Perhaps maybe because I’m just awful at shooters and racing. It seems as every time I play a shooting game I run around mindlessly in circles until I get shot and killed. :/