Correction, Paladin Mode is the one strong enough to start the Knights and wield one of the Royal Knight's powers in the form of a freaking badass sword.

The Royal Knights are as followed (With their first appearance in the show/movies in the parenthesis)!
Leaders:
Alphamon (Considered "lost", X-Evolution)
Omnimon/Omegamon (Current, Digimon: Our War Game Movie)

Members:
UlforceVeedramon (Digimon Manga)
Dynasmon (Digimon Frontier)
Crusadermon/LoadKnightmon/RhodeKnightmon/LordKnightmon (Digimon Frontier)
Craniamon/Craniummon (Digimon Savers)
Duftmon/Leopardmon (Digimon Savers)
Magnamon (Digimon Adventure 02)
Gallantmon/Dukemon (Digimon Tamers)
Kentaurosmon/Sleipmon (Digimon Savers)
Examon (Digimon Xros Wars)
Gankoomon (Digimon Adventure PSP Game)

Currently, only 1 Royal Knight has yet to be revealed

Oh really? I should probably track down a copy, at least with it being on the DS I can import it.

You have no idea how much i searched for a copy but had to settle with one without a box.

However, the Omnimon from Our War Game, the Magnamon from Adventure 02, and the Gallantmon from Tamers aren't the Knights. They just happen to be the same Digimon species.

The Knight iteration of those characters debuted in X-Evolution alongside Alphamon.

I considered it best because it wasn't as odd as the others.
Agumon became Greymon. Patamon became Angemon, and the game gave you clear cut instructions for what you need to do to evolve them.

If the eccentric and outlandish Evolutions was what you liked in prior Digimon World games, Dawn/Dusk probably won't be your kind of game...

I know, I was just listing their first media appearance :lol

Well, that's dumb.

Fair enough.
Speaking of the Royal Knights, which Knight would you like to see released via D-Arts next?
I'd want Alphamon or UlforceVeedramon next, myself.

That's reason number 2 for why I dislike Frontier so much.

Reason 1 is not having a clear direction for their story.

If Alphamon came with the Ouryuken and wing effect parts, I'd definitely want him