Class Struggle

[blackmage_nuke]

So far we've had multiple Fighters (Firion, Cloud, Squall, Tidus, Lightning), a thief (Zidane), a blackmage-esque (Terra), and a dark knight/paladin (cecil) class main character.
But there are many classes who've yet to have a chance in the spotlight

Assuming an FF without a some sort of guided class system (Ie classes may be alterable but its quite clear what everyone is meant to be, like in FFX), what class would you like the next main character of FF to be?

I still think Geomancer should have a chance to shine, or maybe Whitemage can break free from it's stereotypical second female main lead role and get the main lead for a change.

Also discuss how Strange it is that the second main character class they forced (Dark Knight) seems to be the least prominent for the rest of the series