Obama is the strongest Democratic Candidate for President

In the recent polling that I have seen, Obama seems to be the strongest Democrat. I guess the question is whether it is really support for him or just the hope for some relatively unknown Democrat, my guess is that it is the later.

Possible match-ups - 2008 U.S. presidential election

Rudy Giuliani (R) 49% - 40% Hillary Rodham Clinton (D)
Rudy Giuliani (R) 44% - 41% Barack Obama (D)
Rudy Giuliani (R) 48% - 41% Al Gore (D)

John McCain (R) 46% - 41% Hillary Rodham Clinton (D)
John McCain (R) 42% - 42% Barack Obama (D)
John McCain (R) 47% - 41% Al Gore (D)

Fred Thompson (R) 39% - 46 Hillary Rodham Clinton (D)
Fred Thompson (R) 34% - 47% Barack Obama (D)
Fred Thompson (R) 37% - 47% Al Gore (D)

Source: Quinnipiac University Polling Institute