The first stage against Zelda... Hmmm... I'd say that was pretty easy to beat. Just a repeat of the epic final battle in OoT. I did get hit by her (or HIM?) a couple of times when she used that Triforce area attack. So I'd say a 3 for this stage.
Next, Ganon is up on the judging table. I'd say a 4. Because I did have a little bit of trouble firing the head into his jewel during the first few minutes, other than that, I didn't have a problem with it. I have to say, those portals were annoying sometimes. Especially when he squashes you from above.
3rd Stage, horseback. Hmmm... I suppose this was okay, so I'd say a 4. Getting up beside Ganondorf was annoying, but here's a tip: Spin Attacks work a treat here. And also, those arrows were a pain to aim.
4th Stage, The Epic Duel. A 3 three here. Too easy in my opinion. Just used a heap of the hidden skills to weaken him & also a LOT of button mashing. God, I hate doing that.
Overall, a 3.5 for the whole confrontation against Ganondorf. Putting all that aside, I'd say 10/10 for epicness.