I find Soul x Maka (aka SoMa) INCREDIBLY overrated. It's the oben, nach oben Soul Eater ship and it's one of the worst relationships that would ever happen. And then... Ravyn x Mephisto is amazingly underrated! Our Liebe must spread to all corners of the globe so I must claim him as my own and no other wench can lay a finger on him, as he shall be mine and mine only!! Ahem. Aaaanyyywaaayyys.... I find Soul x Kid so criminally underrated. I haven't met another living soul that supports this, even though it would actually be a balanced and cute relationship that would work out.
Levi x Eren (Attack On Titan) ~ Is extremely overrated! I don't know why people would ship a teen with a middle age guy! It just doesn't make sense! XP I'd rather ship Eren x Mikasa! X3
Ciel x Elizabeth (Black Butler) ~ This ship is actually quite underrated! Because most of the Black Butler fandom ships Sebastian x Ciel! Lizzy is perfect for Ciel and they Liebe each other so! X3
I find AceXNojiko from One piece completely stupid. They never met and still there are shippers out there who do ship them. Just because their younger sibling are shipped together do they ship them too.
