In addition to the other replies, it also depends on your computer. I have a new Matebook 13 and 18.04 didn't quite work as well out of the box for me as 18.10,

In addition to the other replies, it also depends on your computer. I have a new Matebook 13 and 18.04 didn't quite work as well out of the box for me as 18.10, because it lacked some of the newest drivers and the laptop has some pretty new components. But if you have an older laptop, or a desktop computer it's probably less relevant so the LTS version is likely better.