Having experienced all three types of judging formats as a hacker, I honestly enjoyed the Demo-athon types the best.<p>The most exciting part of a hackathon is seeing what other hackers have made and that's almost impossible when you're stuck at your table demoing. Especially if you're a solo hacker or a key member of the team.<p>The expo-style format may be the most scalable, but there's also a ton of room for improvement. I distinctly remember a hackathon (MHacks maybe?) where none of the sponsor judges came to see my app. Another time I overheard judges prioritized tables that had the most twitter mentions, turning the expo into a social network popularity contest of sorts.<p>Its exciting to see hackathons trying to solve the demo problem, and I'm really glad someone put together a guide, but I think the ideal judging format has yet to be found.
From my perspective, the "conversation > pitch" line is key. I love walking around, talking to people, and watching in awe as they excitedly demo their hacks. But it's pretty irritating when everyone tries to sell eachother their apps.<p>For that reason, I’m a fan of the science fair-style expo. It has less incentive for self-aggrandizement compared to onstage presentations. Hackers can be more genuine/playful without that single, high-tension Demo-athon pitch.<p>But then again, I have no idea how difficult science fair-style events are to coordinate. I’ve never organized a hackathon.
I really like the crowd judging idea of letting hackers do the judging. Science fair style seems to be the way to do it and it solves the problem of getting people to actually leave their booths.