Think I'll echo a couple of the above posters here, and go with Tito. Not only did he seem to fall a bit more clearly on the "benevolent" side as far as dictators go, but I've always found the economic system he created intriguing... and it seemed to work fairly well. He was probably the one person who could've held an essentially artificial creation like Yugoslavia together (did a much better job at that than the preceding monarchy), and I think it could be fairly said that the country was in better shape by the end of his regime than it ever had been before. Unfortunately his system started unraveling soon after he was gone though...
Besides, the man had
style... anybody that would send Uncle Joe a note informing him that if he didn't stop sending assassins to Yugoslavia, he'd "send a man to Moscow, and only have to send the one..."
Cojones, man... cojones!
For second pick, I'd go with Ataturk, but only if I were ethnically and linguistically Turkish... otherwise it could get a little problematic.
As for Salazar, my grandfather lived in Lisbon for a couple years in the waning days of the
Estado Novo, and he said it wasn't that bad... of course, his experience as a foreign national there to help in setting up a capacitor manufacturing plant were probably a bit different from that of the average Portuguese citizen...