For the first time, I completed Final Fantasy I last night
I had started it a few times in the past, but usually got distracted after becoming lost/underlevelled. This time, for whatever reason, it clicked and I actually really enjoyed sussing out where to go next, I only used a guide a couple times for small things. It also helped that three of us were playing together with different party make-ups and really into sharing when we found something interesting.
This was the PSP version (which is functionally equivalent to the iOS/Android version), and it's definitely the most playable and pretty version of the game, with satisfying magic effects and such. It's not quite as pretty as FFIV Complete Collection, but more than serviceable.
So that just leaves, 12, 2, and 3