I've used both, while I loved one, I just couldn't get on with the other. In my opinion Vegas is the best video editing suite on the Windows platform, it's fast efficient, easy to use and quite affordable. Premiere on the other hand looks rather nice, but can be buggy, slow and confusing to use. However with the new adobe cloud thing, I might actually have to suggest Adobe as with Vegas you are forced to upgrade every year to keep up with the latest version, costing hundreds of dollars (but less than the thousands Adobe used to charge), while Adobe's Cloud programme makes it far more affordable.