Creative Commons - you reserve only limited control for yourself, and are willing to let others coattail a little bit with you if they fancy adding to and embellishing your work
Copyright - the whole thing is yours
Not quite.
Although the description is correct, 'Creative Commons' isn't an
alternative to copyright - it is simply a way of using it.
Under copyright law, the person who creates the work gets to insist that other people not copy it (within certain bounds) without getting permission.
'Creative Commons' is a convenient way of telling people what kind of permissions they have. For example, you can say 'You can use this for whatever use you like' or 'You can use this for whatever you like, as on you give me credit'.
The most limiting creative Commons license still allows unlimited free non-commercial use, although prevents derivative works or copies without attribution.
One thing to remember is that 'commercial use' has a slightly different definition in law than in normal conversation - I may be able to sell someone else's work, or use it to make a profit without it being 'commercial use' !
Mac