If there was a spot for it, I'd have to say Earthbound. It's my all time favorite game. Both FF6 and Chrono Trigger are fantastic. I ended up playing both in college around the same time.
I think FF6 has the stronger story. There are more story moments that stick out in my mind, whereas Chrono Trigger doesn't have as many. That's not to say that CT doesn't have a great story, but FF6 has a much deeper one. I'll always remember the opening scenes in Narshe, anything involving Kefka, and a certain scene involving Celes.
Chrono Trigger has the stronger gameplay, and is in my mind the superior game. While I enjoy FF6's battle system, CT's is much more fun. I love the tech system, and it made you think about who you were going to bring along for different bosses. In FF6, once you started getting Espers, your characters started to blend in together. In Chrono Trigger, each character had more of a chance to stand out and be different.