Hmmm....maybe....maybe they are al the same, because they are all the same person, the same soul, and only the circumstances at each different reincarnation is what makes the avatar act in different ways in each one of them.

Well I might be wrong, I mean is a theory, so if I'm terribly wrong then hehehe...I apologize o.oU

i voted equal cuz he is still young and not fully trained but he now knows "the glow" so he basically knows everything that the past avatar's did....so ya...he's equal...all he has to do is do the glow somehow....and he is just as powerful and skillful as any other avatar

I think when he's a fully realized avatar (and he's close) he'll be more powerful than the others just because he grew up having to learn elements better to survive, but as of now he's a little weaker compared to them when they were adults, which makes sense. He's def the most powerful for his age, and prolly will be the most powerful by far. Not to mention with each new avatar, the avatar state becomes more powerful