Who do you think should be with Locke? Celes, Terra, Rachel, someone else or one of the other options I listed? I personally like both the Celes x Locke pairing and the Terra x Locke pairing in fanfiction/fanart but...To me it seemed that Rachel was Locke's true love because in the WOR Locke went searching for that magicite to revive Rachel, he didn't go looking for Celes or Terra. And when Locke met Terra and Celes he helped them because they reminded him of Rachel...Locke was thinking about Rachel the whole time.
I actually would have liked it better if Locke had been in love with Celes or Terra (I like both Celes and Terra, just like I like both Aeris and Tifa, I'm not one of those stupid, immature fans who think they must hate to the other one to be a true fan of the character) because I always had Terra and Celes in my party, I played as them and I identified with them so it's only normal that I liked them more than Rachel.
But in FFVI Rachel was Locke's true love, so that's why I think that both Celes and Terra are better off with someone else because they would only be heartbroken when they realize that Rachel still has the first place in Locke's heart.
Oh yeah, I would have voted for the "me" option since Locke is one of my favourite male videogame characters ever but just like with Terra and Celes, Locke will probably be too devoted to Rachel to notice me...