I have to concur with a few of the comments here. I’ve tried both Novolog and Humolog without seeing much difference.
What has made the difference for me with making my sites last the whole three days duration is doing a combo-bolus, wave bolus, dual bolus, whichever term you go by. I do 25% of the insulin up front and then the rest is delivered over a period of about 8-9 minutes.
Once I started doing combo-boluses, the only big deciding factor for sites going bad was usually their location. Sites in areas that move more, like my arm, tend to be more likely to go bad sooner.