dslr is way better, but if you don't want to learn to film with it, then gopro is easy point and shoot.
If you want a dslr, get a canon t3i. I have one and it blew away my expectations. Add a 50mm f1.8 lense and you will be stunned at the quality.
Gopro: Easy, can make profesional looking edits with, but isnt best option
Dslr: Can be hard to learn to use, but not really an issue and you can make nice looking professional edits as long as u do it right