Final Cut Pro or Adobe Premier???

I'm looking for advice as to which is the easiest and best quality video editing software to purchase. 

I've been using iMovie for a bunch of small edits for some interviews that i've done but am now wanting to upgrade. 

I'm not very tech savvy so i'm looking for something easy but will give me great quality editing options. 

Some people say Final Cut Pro others are saying Adobe Premier??

Thoughts as to which is best and why?

I'm using Mac desktop and laptop to do my work on. 

Any tips are much apreciated.