In a far and distant future, men and women have become mortal enemies. Each living on seperate planets, an interstellar war is being fought between the two very different peoples. Hibiki, a mere 3rd class worker, finds himself in the middle of a huge space battle, facing the nemesis of mankind: Womankind!
You cannot really compare the animation given the age difference (although Vandread comes out ahead on this one, bar the 3D sequences).
The story is similar - the protagonist ends up fighting alongside the "enemy", which in both cases seems to be comprised of females, and pretty ones at that. Women end up discovering themselves due to the main character as well as falling for him after they overcome the initial differences.
Three years have passed since the Four Nations Alliance declared war on the Abh Empire. With both sides decimated by the first encounter, the lull in violence has provided enough time to build fleets massive enough to span the entire galaxy. Just before the Abh complete preparations for their conquest, however, the Alliance launches a pre-emptive strike, forcing them to take the defensive. Now in command of her own ship, Lafiel is assigned to the fleet as a destroyer captain, and eagerly awaits the opportunity to prove herself as a true Abriel. But when a new class of enemy ship appears on the front lines, the tides quickly turn for the worse. With her vessel now little more than cannon fodder, her dreams are turned into a desperate race for survival - can she and her crew survive amidst a battlefield of endless death and destruction?
Banner Of The Stars and Vandread focus on large battles in space, following a main protagonist fighting alongside people who others would have considered their enemies. Both series also seem to have a romantic subplot. But if you like space operas/battles then check these out.
In the distant future, aliens called Victim destroyed all the worlds of humanity except for Zion. In this desperate time, young boys of the space colonies are sent to GOA to learn how to, and compete for the right to, pilot the fighting machines designated as Ingrids. These child pilots are assisted by EX -- a special power, and by female partners who repair the Ingrids. However, to save humanity, exceptional candidates are needed, and two new students, Zero and Hiead, motivated by their desire to succeed and burning rivalry, may be the human race's last hope...
Both series have one male pilot with a female backup worker in a futuristic universe. Those cute female helpers fall in love with their pilots. Both pilots use humanoid robots. In Vandread, Hibiki Tokai fights in his Vanguard and in Candidate for Goddess Zero fights in his Ingrid. The animation looks alike, and while the story is not the same, you'll have a similar taste when watching both.
In the distant future, mankind has mastered space and spread empires across the galaxy. While many choose to colonize distant planets, others choose to remain amidst the stars, ultimately giving rise to a new brand of humanity known as the Abh. Both genetically and culturally different from their Earth-dwelling peers, the Abh soon find themselves engaged in a bloody war that rages across hundreds of planets and set out to restore peace by means of conquest. Enter Jinto, a nobleman and ambassador of the recently acquired Hyde system whose duty is to represent his peoples' interests and rule on the Abh's behalf. In order to be officially coronated to this position, a cold-but-beautiful Abh princess named Lafiel arrives at Hyde to escort him back to the empire's capital. When they are suddenly attacked by an anti-Abh liberation front, however, the festivities are cut short, and the two must flee for their lives against all odds.
In the distant reaches of the galaxy, the all-female Solnoids and alien Paranoids, two advanced civilizations, have been at war for centuries. In the midst of a battle, a SOS is sent for the Solenoid fleet to protect a newly-terraformed planet from its enemies; but during the escape, one ship was left behind, crippled and wounded. With only a handful of survivors left, the Star Leaf must now race against the clock to rendevous at Planet Chaos... that is, until something goes terribly wrong.