Hands down, digital slr cameras offer the best quality photos but there is a growing trend called Iphonography that is making artists out of everyone.
Camera phones are handy (because we all can't seem to live without our cellphones now) and if you can spend on the best ones, they also usually come with decent cameras with one-click, few-clicks filters that can turn your ordinary snapshot into something focused, interesting or just downright funny. The iPhone bests most phones because of its simplicity that allows it to be the most user-friendly.
Even professional photographers have taken to shooting hundreds of pictures a day to document their lives and what they see or share with friends what they thought was amazing or weird. Try it, an iPhone (or some other Android phone) is much cheaper than a professional DSLR anyway... a lot less heavy too!