I find Days of ruin easily better.

Although I've beaten the first game, and played a few others, the previous games felt too kidish for me. It's fun, and never felt like it was anything serious. Not that I'm complaining, but I just wanted a more realistic, with a darker there AW, and that's the DOR. In the previous Advanced wars, it never really felt like a war.

The gameplay has been greatly balanced, wifi, better music (The original music was again, too childish for my liking), better plot, darker theme, and so on. Although the only disappointing part was that there wasn't a War Room, and less COs, but the story made up for it. I haven't beaten Dual strike, but Days of ruin is still the best in the series, in my opinion.

This is just my personal preferance. Everyone has their own opinion, so this is how I am.

I used to buy used games off of EB games/Gamestop. I often buy them off my friends. I only have 4 games right now.... Too bad I can't afford more.