Who do you think is the best military leader in television and movies (books are OK too)? Personally, I'd have to go with Stannis, for holding down the fort.
Yeah I guess Aragorn's pretty underrated. Although it was really Gandalf that co-ordinated the entire thing. He was like Middle-Earth's Eisenhower. Also, THORIN OAKENSHIELD. Because references to The Hobbit are great.
It's not fictional but More dramatized, in Luo Guangzhou Books The romance of the three kingdoms, Zhao Yun was an Excelent commander and even rescued his lords son while riding through Hundreds of enemies, he's my favorite.
Oh, shit, I almost forgot - Tiber Septim. And Nerevar I guess if you want to delve a bit deeper into TES lore.
I'll say Lion El'Johnson of the Dark Angels Legion, mostly because he's my 40K duplicate. Did you know that every universe my scientists have seen has a duplicate of me? Apparently I'm a muliversal constant!