I highly recommend Bakemonogatari. has some very interesting characters, plot and some witty dialogue and funny interactions between them. Let me rephrase that, there's actually a lot of talk and banter between characters but it's well pretty written and you'll hardly notice. Its visual presentation's also certainly different & can be rather odd & may be an acquired taste, but do give it a try.
Some conversations & quotes from the series:
“Just this once, I’ll do anything. Anything at all. Just this once, I’ll fulfill whatever you wish for. Whether it’s world conquest, eternal life, or defeating the Saiyans that are coming to earth.”
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“My harsh remarks are made by transmuting 40g of copper, 25g of zinc, 14g of nickel, 5g of hiding my embarrassment along with 97kg of spite.”
"It's mostly spite!"
"By the way, the hiding embarrassment was a lie."
"That's the one part you shouldn't get rid of!!"
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"There was a figure of a man who fought an elementary school kid, threw her over his back with all his might, and was boasting about his victory from the bottom of his heart, despite the fact that he was in high school. Actually, that's me"
"There stood a high school boy, who for selfish reasons had twice beaten an elementary school girl unconscious, and had gotten all nihistically worked up about it. Actually, that's still me."
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And finally, something serious:
"Different conclusions are reached when one fact is viewed from two separate points of view. When that happens, there is no immediate way to judge which point of view is the correct one. There is no way to conclude one's own conclusion is the correct one. But for that exact reason, it is also premature to decide one's own conclusion is wrong."