He had the high ground.

Taunted him? With one line? In a tone that was neither belittling nor self-agrandizing?

If that's the case, basically confirms Anakin was simply an easily manipulated, petulant child incapable of critical thinking for even and instant. It's also about as anti-climactic and stupid a way to end as a duel as...the duel at the end of TPM. Huh, I guess Obi-Wan learned from that experience: when you have the high ground, don't stand there and do nothing like a putz when someone right in front of you jumps over your head. Clearly, this is a wisdom beyond the usual training of the Jedi and the Sith 

Agree. I think Obi would have won the duel anyway had Anakin took a different approach to jumping. And no Darth Vader in suit would have happened to be likely.

So the answer is to put himself in an even more vulnerable position by jumping right over Obi-Wan's head (where he starts at a lower position anyways)? Especially when there was plenty of other places for him to jump to on that hillside, which would have required Obi-Wan to react after the fact and leap at Anakin to strike?

Yeah, Anakin is a moron, plain and simple.

that's the biggest problem with the prequels.

they made Anakin into just a dumb stupid kid who got tricked into the dark side.

"from my point of view the jedi are evil" right after he murdered a bunch of children.

beliving Palpatine's bull-sheet when he contradicted himself within 5 minutes.

and so on, the list is endless.

Anakin could have been such a great character but instead was just a stupid brat.

look at Walter White in Breaking Bad or Lex Luthor in Smallville, they had great character arcs that showed their descent into "the dark side" in a great and interesting way.

but in Star wars it was just silly.

and it ruined the character of Vader who was such a great villain but now when you think of what's inside the suit is just a whiny kid who didn't get his way and got fooled and tricked by some old man. stupid