Wonder Girl is a character and she has appeared in comics (well duh). It's just that I think their real names are stated more times than their super-character name. I don't think any of these three characters should be merged or deleted. They are pretty defined in their own right.
For example, in one of the third volume of Wonder Woman, Donna Troy goes "I am Wonder Woman" but they all know she's Donna Troy. I believe Cassie Sandsmark is still Wonder Girl. Post Edited:2007-06-08 08:47:03