Tifa or Aeris

Aerith saw Zack in Cloud. And Tifa didn't know she was harboring feelings for Cloud ever since that Lifestream incident. It's more like Cloud has a crush on her right from the start and Tifa was kinda clueless. He wanted to become stronger so that Tifa could notice him. Hey, isn't it all same for most guys out there? Just to get noticed by a girl, I mean? Anyway, Aerith did tell Cloud he reminded him of her boyfriend, and she wanted to make sure she was liking him on a different note than what had happened with Zack; i.e. she was just making sure that her feelings were real and not because that she liked Cloud because he was like Zack. It's really frustrating for a guy to know something like this. I mean, would it be OK with you if your girlfriends like you just because you remind them of somebody else? Ouch City, man. And I really have to hand it to Aerith, she was honest. And Tifa likes to beat around the bush, and in the end, Aerith won Cloud's heart.

Go, AERITH~~~!!!

As for the childhood and love-at-first-sight thingy, I'm with romance that started from childhood and then blossomed into something tender. But there are some girls out there who don't know how to handle them, and Tifa is one of them, so I don't like her.