These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Complacent Gaming Syndrome: Expects most of the players online to use Dark Knight Nacht, Magus Alba, and Seer Dusk for endgame party. The other two party members tend to vary, but Paladin Aigis and Dragoon Sol seem to be used the most.
To be fair, the story and their stats modifier sort of encourages one to make Nacht, Alba, and Dusk as such classes. So there's a reason for that.
For Warriors of Light, Boost Jump (Enrage + Jump). It only requires Warrior level 7 and can be obtained as soon as Dragoon is unlocked.
As for Warriors of Darkness, Smash (Lotus Strike + Precise Shot). Level up a Monk until level 4, job change to a Ranger, and use either abilities.
Ensemble Darkhorse: A portion of the fanbase has latched onto Barbara. Let's count the possible reasons — Dragoon (which are always popular), Action Girl (only the thirdtime these two have been combined), Stripperific, redhead (again, one of the few with Refia and Cissnei), and she has the advantage of her tale being the first of the game to be announced, so she got much more exposure and attention than subsequent characters.
And Sol is always the first who notices Vata's presence in every single of their encounters.
Not to mention Sol is very desperate when the party is forced to kill Vata.
When Diana asks Sol why does he keep moving forward, he answers that he can't let down everyone, especially his mother...and Vata. He doesn't mention anyone else's name. Diana is surprised when she hears this, and tells Sol to forget their conversation.
Sigurd and Graham. Makes you wonder why Graham chose to inhabit Sigurd's armor of all things.
Many have misinterpret Aigis and Dusk's conversation in Ashmonte (he just wants to clarify Dusk's allegiance) as...something else.