"The Fastest Man Alive" is a phrase DC Comics
has used throughout its existence to announce its trademark speedster
character The Flash
. The first Flash was Jay Garrick
from the 1940
s until 1956
. Barry Allen
recieved the title when Jay went into semi-retirement, and Allen was the Fastest Man Alive until 1985
when he merged into the Speed Force
and became one with the Other Side of the Light
. Next to carry the title is Wally West
who was Allen's nephew.
There has always been an ongoing feud between fans of The Flash and those of Superman. A race was held once between Barry Allen and Supes. The Flash won, but there were complications during the race which question its validity. Maybe someday there will be a rematch.