It can be said that the two mountains that surround a valley do so in a way that gives them unique identities still. Though the two do so in remarkably different ways, they are still the same two mountains in the valley. This is what marks the twin mountains Goshuushou-sama Ninomiya-kun and Girls Bravo.

The two series tell the tale of a man's fate-ordained meeting with a beautiful lady who will ultimately change the way he lives. Yet, as fate would have it, life would not be so convenient. The two series tackle the day to day affairs of the man as his life continues to move forward. Ultimately, the two series tells the tale in remarkable symmetry and synchronization that can easily awe viewers. Yet, in as much as the two are similar, several underlying differences still marks the two distinctly from one another. After all, the two mountains are still mountains in their own right. Thus, if you enjoyed climbing one of them, considering the other is wise choice.

Both GirlsBravo and Goshuushou-sama Ninomiya-kun is about a person with dificulties towards the oposite sex. Both series have a person who can neglect the "troubled" one which means that the boy/girl who can't be close to the opposite sex finds a girl/boy that they actually can be close to without various things happen.

The stories of the two series is different but you will soon realize they follow the same pattern.

In short: if you love Girls Bravo you'll love Goshuushou-sama Ninomiya-kun (or th other way around) becouse while different it's also extremely alike.

These series are very close to eachother in many ways.

in Girls Bravo the male lead has a fear of women and in Ninomiya-kun the female lead is afraid of men

both series have a ditsy well endowed pink haired female lead too

if you liked one you're sure to have a good time with the other

Both Miharu in Girls Bravo and Mayu in Goshuushou-sama Ninomiya-kun have a striking resemblance with their pink hair and well endowed chests and a ditsy personality. Asides from that Goshuushou-sama Ninomiya-kun and Girls Bravo both share ecchi fanservice that fans of the genre will enjoy. In Girls Bravo Yukinari has a fear of women, but in Goshuushou-sama Ninomiya-kun Mayu has a fear of men. What evolves in the end is an ecchi romance comedy that is definitely a good watch if you enjoyed one.

To me, Goshuushou-sama Ninomiya-kun seems to be what Girls Bravo tried to be and failed. While Goshuushou-sama Ninomiya-kun manages to stay light and very ecchi, Girls Bravo makes the mistake of getting deeper then the writers could support. Both are good series though, and so similar that watching both is almost a given.