93% of statistics are made up on the spot. In all seriousness I have found it's not the number of reviews or that they are done consistently. I have found that

93% of statistics are made up on the spot. In all seriousness I have found it's not the number of reviews or that they are done consistently. I have found that the most helpful reviews are all the ones where really good code is reviewed by lots of people that has all of the things that organization considers a good practice. 1 Review like that does a lot more good than 25 reviews by lesser skilled coders.