Most are too musicy for my taste. I like my notifications (and being called is also a notification) to be notifications, not some overly long overly elaborated composition. I want a ringtone, not a ringsong.

I think Nokia got it quite right on the N9, for most part. Sure the default Nokia ringtone is the first thing to be changed, but the "Blip" ringtone is just right. Very audible without being too intrusive. (Yeah, and occasionally a whistling bird outside makes me glance at the standby-screen )

Also, those default touch and gui-tones should be OFF by default. Whoever actually wants to hear those tones is a sociopath.

I'm sure there will be many tones to choose from, but I hope there will be nicer ones than those released now.