David A
Frank was a great singer and song stylist and as you say, "a true original". As good as Sinatra was, I think Buble is more versatile musically and more at home with newer styles. He "does more with a song" because he not only has a big ego and lots of talent, but he has the facility to do things that was gained through Sinatra's (and others') ground-breaking work with arrangers and composers. Buble also has more composing and arranging talent than Sinatra.
Kini
Maybe you havent heard Sinatra from all of his periods in the 40s, 50s and 60s.
G
Frank Sinatra all the way!