In terms of editing, I use a trio of software. For the commentary, I record using Audacity because the editing options once I've finished recording allow me to perfect the quality. Removing unwanted noises is the main priority for me which audacity allows. In terms of video editing, I've used Vegas Pro for a few years due to the fact that once you've got the basics locked down, it's easy to move around and create content I'm really proud of. For the graphic side of things like overlays, outros and thumbnails, I've used Photoshop for a few years also for graphic design work so using it to create thumbnails was the best choice for myself!