sql2008 encryption algorithm

Following below are encryption available for db mirroring use in sql2008. I wonder which one of these are provide very strong  to the least encryption? I heard that using strong encryption will use a lot of cpu resources, so I'm thinking to use the most suitable for our environment.

 [ALGORITHM { RC4 | AES | AES RC4 | RC4 AES } ]
motioneyeAsked:
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EugeneZ ZhitomirskySQL SERVER EXPERTCommented:
yes, you are right about CPU resources...
The rest it is up to your environment

check the below articles

Choosing an Encryption Algorithm
http://technet.microsoft.com/en-us/library/ms345262.aspx 

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for db mirroring
Database Mirroring (OLTP)---a Technical Reference Guide for Designing Mission-Critical OLTP Solutions
http://technet.microsoft.com/en-us/library/hh393563(v=sql.110).aspx

Database Mirroring Best Practices and Performance Considerations
http://technet.microsoft.com/en-us/library/cc917681.aspx


Things to consider when setting up database mirroring in SQL Server.
http://support.microsoft.com/kb/2001270

Database Mirroring Endpoint
http://msdn.microsoft.com/en-us/library/ms179511.aspx

Database Mirroring Transport Security

http://msdn.microsoft.com/en-us/library/ms186360.aspx
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Microsoft SQL Server 2008

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