I kinda disagree. Personally I think Reagan and bush jr were both disasters. However, I acknowledge the conventional wisdom is that Reagan presidency was a success. But I am sure the conventional wisdom will eventually be that W was a disterous president. Two things are helping W for now:Why not
If the affable and incompetent Reagan and the terminally useless Bush II were able to get the job, why not the Master of the Universe ?
1. Because of 9/11 people do not want to attack their president.
2. Trump being so awful is making W look like a genius.
I will add a personal one:
3. As much as I hate W presidency, he has 3 positive things:
A. His wife and his marriage is amazing. I am proud to have such a man represent us.
B. He is a fun and affable guy. I woukd love to have lunch or beer with him.
C. He is an amazing ex president. Never spoke ill of Obama or Biden or Clinton even though Clinton caused his dad be a one termer. Add to this that I am confident he despises Trump and his politics.