He had a seat reserved, apparently. I would not say that Sixten gloats, but let's just say — he quotes his own prediction:

[] it might be Index or it might be Toradora, but I have a feeling that a new J.C.Staff classic will emerge this fall. It’s not as much of a sure thing as when I predicted the success of Potemayo, but I have confidence.

and later:

I totally thought the new classic would be Index, but I was wrong. It’s Toradora. Ironically, at the start of the season people were praising Index for sticking to the source like glue while bashing Toradora for changing stuff. But as it turned out, being faithful to the source actually hurt Index, while Toradora has gone on to rock like a mother. There’s a lesson to be learned here.

Indeed, but there's a concern here as well. Since the manga is ongoing, the ending is in peril. I won't call Toradora a "classic" until I see the ending.

Sixten neglects to mention the lack of noses. His own artwork usually features rather minimal noses (Kuu in Haibane only got one pixel), but they are there. And BTW, I wonder if a chibi Ami is on the cards...