My current ring tone is Final Fantasy 7's victory fanfare. It's not exactly like the one seen below. It continues on with the track a few more seconds before looping.
My alarm for waking up is something like 30 seconds of FF6's boss theme. I would do longer, but the damn phone doesn't let me decide when it will loop the track.
Ringtones for txt messages vary. Currently it's on the old theme, which was Super Mario Bros, wherein I'd collect a coin for every txt. Basically like one press of the button below. I'm accepting suggestions for a Final Fantasy iconic SOUND that would work well for this. Not a song, but a sound.