Yuki, perhaps?...
But Yuki is with Touya... *sweatdrop*
Anyway, yesh, if S + S weren't together, the world stops turning. And we all go flying all over the place. (But if I really had to say who I really think he would be with in some horrible world where Sakura didn't exist, he just seems like he'd be with Eriol, since he's so into people with magic! XD But I really don't like that pairing, it's a little weird, I used to like it, but... S + S! Whoo! And isn't Eriol with Kaho or something anyway? O.o Pedophile...)