I just came home from my second prerelease event; this time it was Battle for Zendikar and at the first time I was at Magic: Origins prerelease. I had fun though I am suffering from a never-ending flu. As I only have experience on these two sanctioned events I cannot help but to compare the two. I might add that I have nowhere near as much experience on Magic: the Gathering as Aki has and I take the whole game anyway pretty differently.
Based on my experience. Of course, there’s plenty of rules mistakes and deck building mistakes, but I’m focusing on easy-to-fix problems. Also, even though I’m giving specific examples, I’m trying to fix larger problems.