Well, I myself like songs like Time of your Life and Wake Me up When September Ends, both very easy, by Green Day. Also, Opportunity by Pete Murray is a good one, but you'll need capo 1 to get it in the right key (well the same key as the song is recorded) I also play:
Things I'll Never Say - Avril Lavigne
Steer/Scar - Missy Higgins
Bubbly - Colbie Caillat
Big Girls Dont Cry - Fergie
I dunno if youd like them but theyre great acoustic songs. have fun and happy playing!