Strictly speaking, he said it in 2012, back when Erdoğan was just a dodgy Prime Minister. Of course, Putin was still around... What he meant was that he was the only dictator in Europe who was making no efforts to hide it; Russia and Turkey still have at least the pretence of free elections.
Then again, what is Europe, geographically? If I count continents, I count something often call "eurasia" as one continent, not two. I think cutting it in two over some mountain rig is a bit, well, arbitrary.
As stated I do not see a "geographical europe" on the map. I see eurasia. And being "european" definitely has nothing to do with having clean politicians.