Counter Strike : Global Offensive

Hey guys, recently i have been planning to do an unboxing but i just do not know which cases are the best to unbox. Can i have some advice? I would like to get some good skins or knife that is worth the money. I know many people have been getting loads of trashes and it's not worth to unbox, but i would like to try. So any suggestions? You guys can follow me on twitter at https://twitter.com/BrookPish and tweet to me there. Thanks!