I kind of agree - the previous Legendary VS. event had two equally sympathetic but equally extreme sides - "embrace the light, be loved by the light, and serve the light", or "embrace the darkness, love yourself in chaos, and serve yourself" - Sure, Yasuo painted the light as domineering and control-hungry, but Riven provided something sympathetic to the side of Order, making it seem as welcoming as it was potentially restrictive.
But, with this Legendary VS. event, we have less sympathetic interpretations of Order and Chaos - Garen, who's jealousy and vanity drive him to be the sole executive power in Demacia, who controls pretty much everyone's lives for the sake of having his "utopia" - and anyone who thinks even slightly differently is likely a blasphemer and should be executed...
While Darius' character is flatter than a day-old soda. He simply exists to bring Chaos and disrupt Order. The world belongs to the strong, and there should be endless war, so he seeks to kill the last bastion of Order and be done with it. He exists to perpetuate a cycle of violence and destruction, and views strength as the only force that should dictate one's life.
(which, I guess is ironically a pretty accurate representation of their viewpoints - Demacia is a sequestered, isolationist government, and Noxus believes the strength of the individual is all that matters)
But Garen and Darius lack the sympathetic natures of their respective forces. Where Riven was "join me and be loved", Garen is "serve me or be smote." - and where Yasuo was "live for your own desires, run unchained", Darius is "you live because you've killed everything weaker than you. Keep going."
And, that flatness of character between the two, the lack of anything generally human in them, actually puts me in a tough position for the event.
I would love to get both Loading Screen borders if I could (and obviously both skins and wards), but, it seems like a side has to be chosen, and while I love how Garen looks...I hate, hate hate his character (which is a shame, since I wanted to choose Order), and Darius just seems...Eh. (which is meh, since I chose Chaos last time around.)
All said, this Legendary VS. will involve impressive skins, no doubt, but less-than-impressive characters compared to the last Legendary VS.