These answers are in need of a refresh. Depending on how complex you need to go with your video editing, the best options (as of 2019) are:

- Kapwing: phenomenal suite of tools for editing. Online, and very fairly priced. Benefits: fast, easy to learn, affordable.

- Premiere: only if you are committed to a learning curve of about 30-40hrs in program to get from beginner to intermediate. Benefits: powerful, functional, a pro editor.

My team and I wrote on some techniques you can use in your video editing here if you'd like to review some extended reading:

https://vidico.com/news/5-effective-video-editing-techniques-every-marketer-should-know/