Genesis Dana, 2x Exp, or nothing?

For those of us who've played long enough, we've seen Nexon give three rewards to anyone who plays in a server when they release it. Genesis Bandanas, three weeks of 2x Exp, and nothing(first few servers).
Which one do you prefer?

Note I just noticed, for the "nothing D: just fills the server with bandwagoners", it's talking about things like Danas and Exp that make Bandwagoners.