Final Stage - Azel
Azel is no different from your first battle with him in stage 4, so you can safely use the same strategy as you did before. It is hard to guard break Azel so I suggest you don't insist on it. It is easier to counter him even by accident so stay close to him for up close and personal attacks whenever he's not performing roulettes.
If you want to play safe/cheap (hehe), you can spam Drunken Twist-cancels or better yet, Fist of Justice-cancels (with godhand unleash) like mad. That 95% guarantees your victory considering you don't mess up, even on LV Die (it'll be a boring battle though).
Duck from his Head Slicer and side dodge away from Shaolin Blast. It may be easier to side dodge Shaolin Blast when you're really upclose, or you can also tackle (dash + []) past/through him right before he blasts it.
His "pummel contest" is easily "accidentally evaded" if you often back flip or counter him, but if you decide to play his game, quickly mash all 4 face buttons once he begins pummeling you. This way there is no way you'd lose, even on LV Die. However, you are likely to lose if he has unleash on (see below), unless you also unleashed yours.
Once you take down half his life, Azel will unleash his own devilhand. Anytime he unleashes it, he increases in evasion and practically dodges all your techniques even if you unleash godhand. (You can still use roulettes though) Since it's a waste to use godhand when he's nearly invincible, I personally play cowardice and simply run around the field away from him until his unleash ends, or I'll waste his time by performing the Chain Yanker + Yes Man Kablaam tactic.
If you choose to run around the field, be careful of his Face Kick that he often does from a blind spot. And if there's anything that pwns an almost-invincible Azel, it's pots. You should seriously watch the pot break upon impact against Azel's head and hear him go "Argh!". Pwnt. Just be careful in case he does a Face Kick/Head Slicer/Shockwave.
In this battle, one of the pots will drop you a strawberry so remember to grab it before it's too late!
Final Stage - Angra
First things first — perform Double Shaolin; this should already take out 1/6 of his life. Then, unleash godhand. If your tension gauge is maxed out (bought all puppy pizza and god smoothie), you should be able to unleash twice. By the end of both unleashes, you should have taken out more than a quarter of his life (always pummel him when he's dizzy).
Now all you have to do is keep punching and evade his attacks. For offense, run up to his face and spam Yes Man Kablaam (with evade-cancel). It's so easy is you'll cry of irony. Just keep doing it until you refill your TP, unleash, and repeat. Written below are his attacks and ways to evade them:
Always stay away from the edge whenever Angra disappears to change locations to avoid getting hit when he comes crashing down. When his health is down to half/a quarter, he will start performing some beam move with his mouth where he says "Death becomes you" (or something like that). I don't actually remember what he does if you get hit, cause this is when you can easily get in a free hit by pressing O to counter.
After beating him, congratulations! You've officially beaten God Hand. =)
Enjoy the ending credits. ^_^