Tifa or Aeris

Aeris and Tifa were the same damned character. The only difference between them was their looks and combat abilities. In terms of character, they were both the same person. They were both "secretly" in love with Cloud and were too damned wussy to say anything about it. They were both rather soft-spoken, and both shared the same opinions, speech patterns and responses to any given situation. They were exactly the same.