Christina, because the other are so common but your original name - Claudia is the most suitable one I think, since Claudia is more special and different. Those name above you gave that you are going to rename is too common so I think you better use your original name if there is no necessity to change.
2007-08-08 18:36:11 補充:
If you looking for more name, the website will be really helpful I thinkhttp://www.behindthename.com/