I just wanna know everyone's favourite favourite Strategy Game from the Game Boy to Dual Screen Era [AKA GB and DS. Hence the title.]

My personal fave is a tie between

Fire Emblem: Binding Blade, Advance Wars 2: Black Hole Rises, Fire Emblem: Sacred Stones.

Reasonings

Fire Emblem: Binding Blade is very difficult when it comes to managing troops, and planning out every attack you do. It's allot like being an actual medieval tactician I find.

Advance Wars 2 is just really fun to play. It isn't as hard as the Fire Emblem series, But has the same play-style in a more modern setting. Plus it has a nice bonus of every CO having specific charactaristics. Like Kanbei having 30% Higher Attack and Defense normally but costing 20% more to deploy.

Fire Emblem: Sacred Stones was easy because it gave you grinding areas to level up your guys to their max level of 20, But was the first Fire Emblem game I played and I actually really liked the game. [My fave characters being Erika, Seth and Myrrh.]