It puzzled me when TS3 came out and the genetics had taken a step back. You would expect next generation games to build and expand upon the foundations already set. That doesn't seem to be the case with the Sims as a series though. Each of the games has strengths and weaknesses but as far as genetics go, the Sims 2 was unmatched. I'd love to see the return of dominant and recessive genes. It was always fun in legacy play to see something come out in a great grandchild that you had maybe forgotten or weren't expecting. I miss those surprises and bits of realism.
