Already a Rory/Luke thread. I'd ask whether it is a purely platonic thread but I'm afraid they'd start throwing rotten fruit at me.
As far as opposite sex attractions. My favorite was Rory / Madeline. They seemed to be on the verge of becoming friends but unfortunately season 3 saw Madeline and Louise labotomized.
Given spring break and the (sexual) tension between them. Paris / Rory seems a natural fit. But yet we've been seeing hints this season of something brewing between Lane and Rory?