December 25, 1972 was a Monday.
It was a Monday.
Christmas Day was on a Friday in 1970.
Christmas Day in 1914 was on a Friday.
Thursday
Sunday
Christmas day fell on a Thursday in 1986.
On a Monday
Wednesday
Saturday
Monday
It doesn't matter. Christmas Day is not influenced by the day of the week it is on. It always feels the same, no matter what day of the week it is on. So whether it is on a weekday or a weekend, there is no difference. So no day is best for Christmas Day to fall on.
Leap day does affect which day of the week Christmas falls on, but Christmas will always fall on the 25th. Hope this answered your question!