Shake It Off is by no means her best work but it did the job of a lead single well. It was fun, in your face and introduced a newer, "I don't give a fuck" version of Taylor. As much as I love other songs a lot more on the album, I couldn't imagine 1989 being lead by anything other than Shake It Off. How You Get The Girl is the one I skip the most. I've said it before but lyrically it feels like it fits in with her 3rd album, it's a bop for high school kids.