'Coming of age' is the main theme in both the stories. In Solanin, while the characters are driven by angst; in HnC, the characters are driven by their indecision about their future and romantic endeavours. You can say, HnC is a better and much more romance based version of Solanin.
Umino Chica paints a vivid picture of the wonderful characters in both the manga.
While 3 Gatsu is a bit sports (shogi) oriented, HnC is about the lives of 5 art students who are the best of friends. Rei looks like a younger version of Mayama and Nikaidou looks somewhat like Morita.
Both are true gems of the slice of life genre.
The inner turmoil and drama within a group of artistic-minded people that can be linked to one thing: unrequited love.
Angel Voice is more towards music and the unity of a band, with what seems like unrelenting drama for their group to improve and go to the top. What makes it similar with Honey and Clover is what seems like unrequited love, this realistic longing for a person yet seeing them either in love with someone else or too far to grab hold. The emotions that both manga stir into the reader make it a recommended read indeed.
Honey and Clover is a Josei/Romance/Comedy/Drama story about College Life. While H&C's story is essentially different than Ouran's (and much more realistic) the general feel of H&C is very similar to Ouran.
Unlike many shoujos, the main plot of H&C is developed on the friendships (as well as romance) and relationships of all the characters as a group. You will have a feeling of 'I really want these characters never to separate and be friends forever'. And like Ouran, the characters are unique and you will never forget them.
Like Ouran, there may be love triangles floating around (like Tamaki/Haruhi/Hikaru) but in the end, you all know the characters still appreciate and love each-other. Just like H&C. read more
These mangas revolve around art university students who are finding their way into their careers as artists and both involve complex relationships between the characters and a mature setting, not as in H but as in they are slice of lifes and romances that move at an adult pace and are seinens or joseis not shojous or shounens. The pacing is different and it moves as they are trying to have real adult realtionships not childish ones. Although Honey and Clover is more upbeat and lighter in tone I think that those who appreciate the artists and art setting of both will enjoy both.  read more
Another story about a group of friends setting out on a rocky path to pursue their individual dreams. I find the story of their friendships, love and determination to overcome their hardships making both manga the few selected best reads for slice of life genre. The characters in both stories support each other and in the process find love in its many multitudes. Laced with triangle love relationships and misunderstandings, in both stories the mangaka/author allows love to progress slowly and realistically making it easy to relate to unlike the usual clichéd plot lines. Love them both, cream of the shoujo + slice of life genre! read more
Both of the manga are about art students. In Gokinjo Monogatari, Mikako is a an aspiring fashion designer; while the groups of characters in Hachimitsu to Clover are more of traditional fine art students. Although the age is a little different, Gokinjo Monogatari being about high school student, while Hachimitsu to Clover characters are in college, both manga explore aspects of school, love (mutual and unrequited), friendship, growing up, and parting.
"A person's happiness might be built at the expense of someone else, but even if that person feels guilty, there's nothing to be done about it."
Both manga are realistic josei. While HnC is a mellow, calm story that weaves like a gentle breeze, both share similar sentiments monologues and refreshing moments. There are also bittersweet moments, unrequited love, shattered dreams and many other events but in the end, both series are about life and the people you'll grow to love.
The artwork is similar, and even though it isn't a shoujo-ai manga, it's still, well, shoujo. Michiko reminds me of a combination between Morita-senpai and Tekemoto and Natsuki is kind of similar to Hagu.
Shinohara, the protagonist of Love Life, has some similarities with Takemoto from Honey and Clover. They moved to Tokyo on their own and are living alone for the first time. They are also insecure and trying to become reliable and independent. Both of them don't have dreams or goals regarding their professional career either.