Oh, com'on Motely. Why not list/rate every president, world leader, politician, etc. over the last 250 years? They/we all have character flaws. 
And it's not as simple as saying "I don't like Trump". In my lifetime, there have been any number of presidents/politicians that I didn't like. But that has usually been based upon policy. None come to mind that have even come close to personally behaving in the immature, irresponsible manner in which Trump has, particularly given his short time in office. And yes, behavior does matter. It goes with the job. (Which is why B. Clinton should have resigned after lying about Lewinski.)
But based upon the support Trump continues to receive in this country, it doesn't matter to many. Much to my dismay and, in my opinion, much to the detriment of this country.