Bakemonogatari

Both are animes featuring surrealist drawing style, little actual plot, curious characters, and random discussions about life the universe and everyting.

The same studio's work. Flashly amazing graphics and sharp and hilarious dialogs wrapped in a pretty interesting story revolving about the surreal and supernatural. And the messeges in the backgroud - If you liked Zetsubou Sensei or Bakemonogatari, you should the other one. I assure you like it.

The eyecatcher in both Bakemonogatari and SZS is the artstyle. The way the Shaft animated both series gives them a unique look and feel, and is possibly the only example I know in which the animation influences the anime this much. Apart from the animation, both series have a reasonably large cast of interesting characters, most with their own little background and distinct personalities. I feel that if you liked one of these, you shouldn't be missing out on the other, despite differences in genres.

The style of animation and art directing is next to identical and even if SZS has deeper meanings to it's conversation, both show's conversations are random and confusion in humorous ways.

Alright, on the surface, these two anime have not a whole lot of similarities, apart from their presentation. But in the end, their presentation is so unique and esoteric in a way they're an acquired taste.  If you like the visual feast that is SZS or Bakemonogatari , you'll probably love the other.

Setting that aside, both are primarily comedies, both feed off a great deal of contemporary humor and witty dialogues. 

Both productions of Shaft Animation. Bioth are beautifully designed and an absolute pleasure to watch, not only well designed but quite symbolic. The main Characters are similiar but Zetsubo Sensei is much more extreme, resorting to suicide mostly every episode (I've seen so far). The both share a number of deep, seemingly random conversation about various matter in the world... Trust me you like them both!

Both animes have a wandering almost completely normal protagonist which grows with his encounters with the super natural.  XXXHolic is a bit more focused with comedy, but it's serious moments surpass those of Bakemonogatari.  Bakemonogatari however has a focus on mature themes and relationship issues as well.  Both are the best of the supernatural/superstition genre of anime and should not be missed by fans of this category!

Both shows deal with quite "heavy" supernatural stories, even if xxxHOLiC deals more with the stories and Bakemonogatari deals more with the interactions and conversations between the characters. They have plenty of smaller similarities as well, like some slightly different versions of the same myth and how many similarities Oshino and Yuuko share.

There are quite a few episodic series about supernatural stories/spirits.monsters/etc. Bakemonogatari and xxxHolic are different from the rest of these because of the emphasis on comedy, espacially in the dialogue between characters. I prefer xxxHolic, because Bakemonogatari seems to pander to the harem/moe crowd, but I can easily see how the same people would like both.

These series are both rather dialog and humor heavy, while being centered around super natural occurrences. Furthermore, in each series, the main character is drawn to the supernatural, despite not knowing how to deal with it, and constantly needs help, and teaching, on how to deal with it from another character that is well versed in the supernatural.

these two titles really rely on conversation. Not just your average flair conversation. but the type that is witty, and smart.

Both have a nice pace, that allowes for plenty of discussion between a man and woman (or deity ) 

Bakemonotari is more unique with the random images and art style, and Spice is more reliant on historical era, but either one should be checked out if you liked the other.

Although the descriptions would lead you to think otherwise, both of these series are actually composed of mostly (great) conversations between the 2 main characters. Both have unique and memorable main females with sharp mouthes, whom the indifferent main guy grows to like.

The witty script and interactions between characters are the highlights of both shows. These are endlessly entertaining and you'll simply love watching the main characters go at it. The conversations are both a mixture of arguing and flirting, which makes them even more fun to watch.

Bakemonogatari is a bit darker and more supernatural, although S&W throws some fantasy and intensity out there too on occasion. Still, theres no doubt that the character interactions are what makes these 2 similar, and what makes them great.

Each of these series are extremely dialog driven, being almost completely conversation with a great deal of puns and wit being used between characters. Furthermore, each series revolves around the supernatural.