Everyone in my family always hated Sammy Davis, Jr. I learned this when I was very young and trying out impersonations of Billy Crystal impersonating Sammy (though my grandfather said that I sounded more like a gay Ed Sullivan--which meant nothing to me in the mid-1980's).
I will probably always enjoy Frank Sinatra's and Dean Martin's material more (as a whole), but Sammy had a presence that cannot be rejected--to the extent that he probably put on a better solo show.
Here are a few clips of some of my favorite Sammy Davis, Jr. songs. It is an incomplete presentation, for some of the choice ones are not posted to youtube.