Hard question boy...
In this kind of mangas or animes men often just appear "perfect" and women don't get jealous when it's another boy who gets the man.
I think also many women like the parts when the guys confess their feelings for each other and are presented in that "soft" way.
Well...and in my case...I like Kisame and Itachi together...I come from the "strange" sector I guess, so I tried to answer generally.