Peter the Great was the founder of modern Russia and victorious against Charles XII, another great commander. That's why Charles, who made an all or nothing game and lost, is out. As is Nader Shah, who conquered a huge area but was not able to hold it, as his wars were ruinous. Qianlong was not very effective either, as he lost wars and led the country into problems. William III was "only" able to secure the crown of Britain, a task, but also not lasting as he had no heir. Louis XIV is OTOH a contender, but his wars (and lifestyle) were too costly. And he did not gain much. The Soldier King Frederick William I built up the base for his son to make Prussia a power. However, he did not lead many wars and was used by the Kaiser. That his daughter would pay with Silesia for that and Prussia becoming a great power was an irony of history.
Because of that my personal list would be:
1. Peter the Great
2. Louis XIV
3. Frederick William I
4. William III
5. Nader Shah
6. Charles XII
7. Qianlong
Frederick the Great OTOH, if included, would be a tough contender to Peter, especially as he had less resources than Peter.