Nasus vs Swain in Tactics
Who do you think is a better tactician Nasus or Swain?
Who do you think is a better tactician Nasus or Swain?
Hmmm, I feel like Swain would be better at first since he's already familiar with modern day armies and what they can do. Nasus just came out of a millennia long depression episode, so he'd have to study up on what's changed in the world. But after he's been able to learn about the changes that have happened, they would be on equal footing i'd say.
i would say equal since Swain has grown up in the modern Runeterra and in an expansionist country. Nasus may have had the same sorta country, but the war is fairly different from his time. he could learn though.
Im gonna say Nasus contrary to the popular opinion. Why? Because, while his tactics are indeed old, Im gonna say that Imperial Shurima was more advanced than current Noxus overall, and much of the knowledge that Shurima had has been lost. So I don't think it's gonna be that big of a handicap for Nasus not being in any modern conflicts as for now. Nasus also has much more experience, and he was viewed as legendary strategist even as a human, by the largest empire in history of Runeterra. The only big advantage Swain has is his demon, which allows him much better scouting and knowing secrets, thus critical tactical info.
Swain because he absorbs the secrets from other people. Knows his enemies moves before they do. 
Thought you meant in TFT.
Nasus has been around longer and is more learned but has never dabbled in statescraft. 20 years of actually running an empire is more valuable than 10,000 years of studying it.
Swain