Adobe Premiere Elements
For those aiming to be professional video editors or motion designers - the word is control.
The best app is the one that gives YOU the control.
You should control the software, not the other way around.
,Ive been a motion designer for almost 20 years, always using Adobe products.
By the years, products only got better - faster, cleaner, clever and always giving ME the control of things.
You can do anything a video editor should do with Adobe Premiere, plus seamless integration with all other adobe tools.
And today with Creative Cloud membership you can have all that arsenal of media tools - all together, with tons of info, tutorials, a whole universe dedicated to their users.
Thats a headstart already.