Um... Well, you said you felt Chrom was more important than Robin. I don't think that counts as an explanation.
Personally, I would say Robin is just as important, if not more important, than Chrom. He/She's the character you see before any other, is the character you see the world through (and as a representation for the player, every move made in the game is essentially Robin's actions), constantly drives the plot of the game with his/her strategies and actions, and ultimately becomes a major focus as the story progresses (due to essentially being the cause of most of the games events), which eventually leads to a climatic final battle that is entirely centered around Robin (Robin is also kind of the final boss of the game). At the very least, Robin is a main character of Awakening, and thus is a suitable candidate to represent Awakening in Smash.
i think we argued on this before, if you don't remember fine.
you say Robin drives the plot with his strategy, but so does Chrom with the fact that he leads the army and represents Ylisse, which includes things like getting an alliance with Ferox, representing Ylisse during the Valm war and the 2 encounters with Validar; things that is a bigger direct focus than Robin's strategies (which are events that only majorly impact one chapter whenever they pop up, which happens about 4 times)
Both Chrom and Robin are focused on during the ordeal with Grima, or do you forget the anti--penultimate chapter was focused on chrom and how he got a weapon solely to deal with the final battle?
but that's just plot.
Compare robin and Chrom to other FE leads. There is too many things that Chrom has in common with most of them that robin doesn't, like...
1- Has a character-specific weapon (ignoring DLC/Spotpass!Marths being able to use the 3 falchions, here)
2- Is Plot-wise, relevant through the whole story (Robin is out of focus in the later part of the gangrel arc... and the Valm arc was very off-center, so there isn't much value in saying this, but he wasn't directly important after C13 til the Grima arc)
3- Is the character you control in the map
4- Is the leader of the group the heroes fight with
5- Is a lord
6- Is required on every single main battle
7- Has access to an anti-infantry/cavalry weapon
8- Gets an upgrade later in the game (OK, it was supposed to be a new weapon...)
Robin's only true "one-up" over Chrom is having a multitude of character themes, and that's not considering Chrom (like Ike) might have a battlefield theme as his own; and they both break the rule of having unique classes (though Lord is less accessible than Tactician)... meanwhile, Chrom was the central figure of awakening's advertisements and stuff (mainly to make him clash with MArth) and his skillset and pairing are given more importance than robin's (Chrom's unique inheritance setup, which can end with chrom having an exclusive skill, and forced marriage)
The game only turns it's focus on robin at the very beginning and the very end, which is not how any plot handles it's main character. Direct focus, as saying "Robin makes strategies" would clash with 'chrom leads the team"
Food for thought: Sakurai actually considered Chrom. If Robin was undoubtedly the MC, he wouldn't even have thought of Chrom.
I understand sakurai's reasoning, and it's a pity he thinks like that. it's jus tnot how someone shold direct a game about nintendo's all stars