DJ Sona- Hear me out
When I saw that DJ Sona is going to be the Ultimate skin, I have to say I didn't share the enthusiasm of most people on the boards. The skin is great, sure but is also the most obvious skin anyone could have ever made for Sona. I mean, a DJ skin? I bet you could find Deviant art of that since Sona's release. It's like making an ultimate Draven skin that has Draven faces on his axes called "Draven Draven". Or an ultimate "Dragon Trainer Shyvana" skin.
TL;DR DJ Sona is a cool looking skin, but really unimaginative.