I am making an all acoustic album and there have been good songs in here so far and I appreciate the (indirect) help.
How about Love of my Life by Queen? Nobody think of that one? If you get a chance to, listen to the Live at Wembly version that was recorded back in 1986 (I was 2 then...) and you will be rather impressed. And, of course, Zakk Wylde's acoustic "Mama I'm Coming Home" is always a winner. I mean, it's Zakk
As for modern songs, Hey there Delilah by the Plain White T's... A Sharp Hint of New Tears by Dashboard (I really dont care for them either, but I like this song) and pretty much anything by Days of the New.