Thank you for instigating this debate, it seems interesting. I'm going to assume that 1st round is simply for acceptance and just say that I,Con, believe that Obama is not part of the top 5 presidents.
While there are some very good presidents, only Lincoln, FDR, Washington have been better. Entering office at the most challenging time since the Great Depression, and was able to keep the country moving forward and implement many significant programs that other presidents that had failed to accomplish, such as national and affordable health care and truly becoming the first president to support full equal rights for Muslims and Gays. He was also able to save the banking industry, the auto industry, kill the biggest threat to America, and end the unnecessary war in Iraq. Not bad for 4 years.