Stoutstien
lunk
Rolling stats is hard one and due to the nature of the spread most of the time the difference is in the favor of rolling. This is double true for tables that roll and allows assignment vs independently rolling each.max hp at first level and then roll after. Why take away freedoms of playing or adding additional hp at first? Not sure why DM's are against players roling up their characters and insist on using the point buy etc. Do you not trust your players?
HP increase per level doesn't have any safety nets for a few bad rolls in a row. I've seen a wizard roll a 1 for lv 2 and 3 HP increases.