Day 2: I like a lot of FFVIII's character designs. On the whole, they feel very functional and a lot more grounded in a way most of the other game's characters don't.
I really like a lot of FFXIV's Artifact (Job-specific) armor. A lot of it calls back to either characters who have the job (Kain, Vivi) or other job portrayals from previous games (FFV, Tactic). It's nice to see a lot of those in a 3-D game. Some faves are ARR Dragoon, ARR Black Mage, HW White Mage, HW Astrologian, ARR Summoner, SB Warrior, SB Ninja, SB Bard, SB Black Mage, SB Summoner.
Day 3: Started playing FFXII: Zodiac Age and I'm not too far into that one yet, so I think that counts.