Damn, I envy you for getting to experience them for the first time! I didn’t start until PlayStation 2 era so I’m in a more backwards order- did 7/10, 8, Tactics, 9, 12, 15, 7R before going back to 4 on PSP in 2020 and then Crisis Core & 16 earlier this year.
I have the GBA port of 1 & 2 but got bored at some point through 1. Also played maybe half of 13 when it was released according to Xbox achievements. I remember liking it actually but was a huge pothead at the time so my memory is a bit fuzzy. Have a strange nostalgia for it though so I plan on going back soon.