Ok, I'm a HUGE fan of Yusuke/Kuwabara, not to mention I write a lot of this pairing; but its like not enough. I know not too many people like Kuwabara, let alone want to write him in a fan fiction. However, you have to admit; they are perfect for each other.
They act gay to each other in the anime it self *[especially in the un-edited version and more so later in the series] *
But that's besides the point. Even though these two are just so obvious, not too many fan fics are about them!! I sometimes feel like I'm the only one who writes it; however, I do remember there was a time where AFF had some Kuwabara fans/writers who only wrote fics about the human with a heart of gold. Now they died out like the how the dinosaurs died ^^;
I love this pairing for many reasons:
Kuwabara brings out the best in Yusuke; making Yusuke want to be better and the same goes for Yusuke bringing out the best in Kuwabara.
They both get extremely upset whenever the other one is hurt; unless they are doing the hurting...then it doesn't bother them ha ha.
And then my favorite; the tension between them when it comes to their feelings. I know it could be considered just 'healthy manly love' but there are times where you're just not sure if its normal man love or the *other* kind of man love ha ha.
So that's my argument ^^. And that is why I love those two together.
*Actually I love anyone that's with Kuwabara, but I just love this pairing most*