it is hard to say which is better because each strategy has own advantages. It depends on yourself. Normally, investing is easy than trading which need the traders must have many skills and experience.
Everything is different and has its own difficulties and the rest all the decisions rely upon the person's skills, ability, knowledge and so on. If you can do both why not but if you cant do what you think you can but bear in mind that atleast you know the things before you invest.