I've had limited experience with Vegas so I'm not the best person to comment on it. However, I have been using Premiere Pro for years and use it for just about all of my projects (have Avid Media Composer as well but haven't taken the time to learn it yet). One advantage of Premiere is the way it works with After Effects and Photoshop.
Links you may find useful:
http/forums.creativecow.net/thread/205/874015
http
/www.tomshardware.com/answers/id-1751102/sony-vegas-pro-adobe-premiere.html
http
/www.onlinevideo.net/2013/02/final-cut-pro-x-premiere-pro-vegas-pro-or-a-cloud-editor/
Another alternative to consider is Lightworks - http
/www.lwks.com/
The Pro version is $60 per year.