Ellery, as a newbie, I thought the same thing there for a while, until I started shooting one, and appreciating their design elegance. Browning understood the concept of 'ergonomics' before that term became a fad.
Fads don't last almost 100 years, and keep on tickin'. Other guns have come and gone, but the 1911 has withstood the test of time. The reason you see more of the 1911s for sale is almost certianly because it's proportional to their popularity, not because it's a bad gun.