Okay, okay, please don't kill me for writing these two articles. I did the best I can to satisfy everyone about their favorite characters and Keyblades, particularly from KHII Final Mix. This took so much work and I do hope you can read it with an open mind and have fun as you read them!
This one is the one for the best characters: http://www.gamersdecide.com/articles/best-kingdom-hearts-characters
This one is the one for the best Keyblades too (my personal favorite is the Sleeping Lion one!): http://www.gamersdecide.com/articles/kh2fm-best-weapons
Hope you enjoy them!