Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
if you want simple, clean, and a drop-dead gorgeous look, go no further than Rise Alarm Clock.
 
Smart Alarm Clock is by far the most complex alarm app for iOS. You can use it as it is just for the alarm songs which by the way are the best or you can set it up to monitor your sleep and to wake you in the right moment when your sleep is superficial.
 
I don't have an iPad but I use "Sleep Cycle" of my iPhone and it's the best alarm app I've ever used. If you feel like you have difficulty waking up in the mornings with a regular alarm clock, I highly recommend that you try out Sleep Cycle. However, if you have no problems waking up in the morning with an alarm, then iOS' built in Clock app should suffice.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.