Hatenkou Yuugi

Female leads have very strong personalities. Both series are specific comedies with a lot of magic elements, bishounens and of course both are romance. 

Both stories mostly made of romantic line as a background to some adventures. The main heroine doesn't seem to be taken seriously by main male characters. Btw th romantic line is partially indefinite (no clear-cut love and kisses ending for you). 

Both main characters are lovable, and in both you can find supernatural beings ang lots of magic. Not to mention similarity between main male characters, in behaviour and irony. Although romance in Hatenkou is more hidden, one can also clearly see it, Hatenkou is also a bit darker in themes and plot. 

In both animes, the female (main protoganist) has a very strong personality, insisting to achieve her personal aims, heartwarming, not the typical disturbing high-school girl; more the thoughtful person. The two main characters as well share their two bishounen-surrounders, with whom she experiences a lot of 'adventures' - also romantice situations, though these are unfortunately just hinted. Both Females own some sort of magical power, though one is more physical and the other rather psychic. For short: Both animes, just like the characters have got quite the same feeling and share lots of simlitaries and share quite the same genres (comedy, adventure, fantasy).  

The characters felt the same and both travel with two guys on a adventure out of the extraordinary. both are great anime to watch 

Hatenko Yugi, “Dazzle,” is a new anime perfect for those finished with VK. The three are in a very similar environment with mysterious, and yet at the same time elegant, fantasy situations that they must conquer while learning about the characters' intertwined and intriguing pasts that shape their personalities and actions now. The characters are also very similar to Yuuki (Rahzel), Zero (Alzeid) and Kaname (Baroqueheat). (The character of Alzeid even looks a LOT like Zero...) The mystery behind their pasts will keep you hooked along with choosing which guy is the best. The situation of dark fantasy adventure with the tsundere romance is strikingly similar!! As it is produced by the same group as Vampire Knight, Studio DEEN, the animation and soundtrack is also top-notch.  read more 

In both there are two cool strong men protecting a young girl, and both are about travelling (in Samurai Champloo they have a goal though). And they are also quite humorous 

Very similar paced stories with fast intro episodes and story build up episodes. Same 2 boy 1 girl love triangles. Both shows also have supernatural elements and female leads that have special abilities that are needed for fighting monsters. 

Both have a strong young protagonist that is accompanied by a mysterious *cough*hot*cough* bishounen. The story also is similar with both solving crimes and awesome action scenes. Furthermore,they both do not have parents that they're close to,resulting in their personalities are quite a bit cold (although Rahzel is very cheery with Alzeid) and they both are clever like dangan romps smart goddam 

well some of the cases remind me of gosick but hatenkou yugi has more comedy while gosick is more serious oh and both have strong female chracters that are bossy but cute