I think that we all became too attached to Vartan as Vaughn. Anyone else wouldn't couldn't match up to the standards that we have when Vartan filled the shoes. If its not Vartan, I think that would be disrespectful... That is like replacing Jen with someone else. He was the leading man, she's the leading lady... Replacing either one of their characters is like suicide. It is okay to get new characters..... Just don't replace existing characters with some other actor, especially this late in the show... It is not daytime TV, where people are constantly replaced.
Therefore, I chose option 2... The "No, it's all dependent on whether it's Vartan." like the majority of you.
Megan