Ahahahah, may be we all have one idea in mind(most probably). iTs Tamaki of course, Kyouya might be, but, I more likely to see Tamaki as Haruhi's partner...yay!
"Bring salvation to akuma's soul."
Life and Death are always one and the sameEVEN IF A RAINBOW IS BROKEN THERE'S STILL THE SKY
I would say probably Tamaki-Senpai. You can tell they really like eachother. And she wouldn't marry Kyouya because his father wants her to be his son's wife. And Kaoru stepped off, bu he probably still likes her alittle bit. And she did reject Hikaru. So Tamaki-Senpai is the definate choice! ;D
I'll go with Tamaki. It's pretty obvious that Tamaki likes her that much and same goes for Haruhi. Besides, I think they would look lke a great couple with all of their "love" for each other and how they show with each other about how they really feel.