In contrast with Stairway to Heaven, I suggest Highway to **** by AC/DC if you're not too concerned with profanity. Back in Black is also great.
Anyhow, I also recommend anything by Paramore (personally, I like their earlier albums but everything is good).
I also like everything by P!ATD except the first album, which is admittedly not my favorite.
MCR in general is great, The Light Behind Your Eyes and Welcome To The Black Parade make my very, very sad.
FOB is awesome; I have a certain soft spot for the entire Saving Rock And Roll album. Under the Cork Tree is my second favorite.
Evanescence is my favorite that I have retained from my younger days.
Anything by Three Days Grace is awesome (I like their older stuff, with their original singer); Saint Asonia is also awesome although they have only one album (The lead singer of TDG left and formed Saint Asonia). Dying Slowly is insanely catchy (though also has profanity).
Unravel and Ready As I'll Ever Be are songs I like from my various shows I watch; the entire OST of Death Note is also awesome.
Most songs from Hamilton, Heathers, Legally Blonde, Little Shop of Horrors, Chicago, Les Mis, Wicked, DEH, BMC, the Death Note musical, or The Prom are also pretty good; I'm not super into musicals anymore but they're still pretty good.
...wow what a large ramble