Dara was the one contestant throughout the season who showed what going to culinary school means. As Gordon pointed out in the final, the comparison between her and Michael was stark. She was organized (through the season) while Michael was a mess. Gabriel who went out early, didn't seem like he learned as much as Dara had.
I guess next season will be amateurs again. I really wish they'd copy Masterchef Australia and add a few non-elimination episodes where they're taught techniques etc. and experiment things. Some of those cooks could really use some help, like organizing their table like Dara or not using certain ingredients, like cooking Caviar (really, Bowen...?).