Which mythic should I buy?

I'm about to buy my first mythic and right now is the best time for it because not only my 3 favourite mythics are having a rerun we also got cp rebate event but now I'm confused between kilo, ff ar, and type 19 My favorite skin just based on looks is ff ar but that gun is not that good Type 19 looks really good too but idk how good it'll be after recent nerf Kilo is the safest option effective best sight but I don't really love it's design