When comparing Creative Commons vs The Unlicense, the Slant community recommends Creative Commons for most people. In the question“What are the best open-source licenses?” Creative Commons is ranked 5th while The Unlicense is ranked 8th. The most important reason people chose Creative Commons is:
The Creative Commons has an easy-to-understand utility for choosing which style of the Creative Commons you want to use.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to use licensing decision tool helps customizing the license type
The Creative Commons has an easy-to-understand utility for choosing which style of the Creative Commons you want to use.
Pro Can restrict commercialization
A popular optional clause to the creative commons is the "Attribution-NonCommercial" clause, which restricts work to non-commercial use.
Pro Short and simple
The Unlicense is just 3 paragraphs long.
Pro It helps removing the conflicts and violence present in the world
Simple, negativates intellectual property, doesn`t falsely legitimate government coercive threats against other humans not mattering what they have done with their code. You can be sure that using it you avoid "my property, it's mine, ok? I just left it for you to use under my conditions, I own it, I wrote it in that file, it makes sense, my government also says so, now die or I'll kill you."
Pro Removes any possible licensing issues
Everything under the Unlicense is part of the public domain, which means that anything can be done with it.
Pro Unlicensed code is easy to find
When using public code hosts such as GitHub and BitBucket it is suggested to use the filename UNLICENSE instead of the more traditional LICENSE or COPYRIGHT to store the license so it's easier to find unlicensed code. Additionally, the first line of the license is worded in a unique way specifically to allow searching for it with search engines.
Pro Protects the author
The author of the software avoids any risk for how the software may be used by others.
Cons
Con Can restrict commercialization
Con Not recommended for software
Creative Commons does not recommend using CC licenses for software.
Con Gives no control of how the code is used
Putting the code in the public domain leaves it open to abuse.
Con Hasn't been reviewed by OSI
The OSI (Open Source Initiative) is an organization that promotes open source software and they commonly review open source licenses. However, they have decided not to review Unlicensed because it has not been written by legal professionals.