There is one superficially valid comparison of Carter to W. Both will have presided over strongly inflationary economies. This, however is not exact because Bush has started the serious inflation this time around while Carter was merely enthusiastically building on the inflation that Nixon launched.
Keynesians will nearly always bring us inflation. Reagan was the only non Keynesian president we have had since Kennedy (who was a Keynesian in his schooling but but more practical in his application).JFK recognized some truth about taxes and brought us highly productive tax cuts. Reagan was hard core "supply side" oriented and brought us 15 years or so of prosperity and no inflation.
"There is one superficially valid comparison of Carter to W. Both will have presided over strongly inflationary economies."
not really true. We were worried about deflation till about one year ago. CPI should begin to increase but it wont be as bad as the 1970s because the global economy is structured much differently than in 1979