Have used both quite a bit. Really love premiere, final cut is meh. They catered to the masses with final cut pro 10 (really anything since 7), so it is more similar to imovie now (it might be a tad easier for you to edit with it, since youre already familiar with imovie). That being said, it is more of a matter of preference, as I know people who are good at what they do, and absolutely love final cut. You should definitely try out both, or read up on the specifics (features) a bit more!