His entire appearance in the game changed my mind about him. When we first saw him from the comics, I was very worried he would either be a copy of Kenshi or a Scorpion wannabe.
But when we first saw him in the Story Trailer, I was positively surprised about how Takeda looked like. I was seriously like "Is THAT Takeda?". I like the Metal Gear/Ninja Gaiden stealth suit, very modern ninja look which I'm quite fond of. And we got a little glimpse of his gameplay with the whips, and since the whip is my favourite weapon of all time, it caught my interest immediately.
And now we've finally seen his Variations, and though his Shirai Ryu Variation has some Scorpion-like special moves, he's no wannabe. He's different and unique enough for that, and it pleases me greatly! I prefer his Lasher Variation from what we've seen so far, but all his Variations are rather cool. The Plasma Swords in his Ronin Variation were really unexpected, and they're kinda cool, but I'd stick to the whips.
After this, he will most likely be my main in MKX. D'Vorah, Cassie and Kitana are all up there as my favourites of this game, but after tonight's (tonight for me) stream, he took the #1 spot.
Edit: Oh, and I almost forgot...