and yes usually by quite a bit. This round of the tournament is awesome because there is always (don't worry, there will be this year too) 2-3 teams you've never or rarely heard of that pull off the upset and make awesome memories for everyone.
If high level basketball is what you want, don't worry there will be plenty of that, as well. Not only in this round, but in the sweet 16 and beyond that's where everyone left is really really really good.
This tournament is amazing.