This week's Newsweek answers yes to this question, and writes:
"Sarkozy, it is often said, has more energy than drum-beating rabbit on TV, and he has imposed himself on European and global affairs with about as much subtlety. But it has been a long time since Washington had such a good friend in the Elysee Palace, and for the new US administration the French president will be the go-to guy in Europe.
During his six-month term as European president, he faced down the Russians in Georgia, then helped pull together Europe's response to the economic meltdown. In Protected content return France to NATO's unified command for the first time in 42 years.
In war or in peace he's a leader to be reckoned with."