what is better macKeeper of clean my mac 2

I got a mac full of junk and i don't know which program to pick because clean my mac 2 cleans and it can also erase files permanently, but MacKeeper has internet security, anti-theft, fast clean up, duplicates finder, update tracker, backup and other apps (it has 16 apps in 1). I got 2 mac's both mac book pro's and 2 licence's for my Mac's for Clean My Mac 2 would cost 54.95 pounds and a 1 licence for MacKeeper would cost also 54.95 pounds.

So could some one tell me which program to buy.

Links

Clean My Mac 2: http://macpaw.com/store/cleanmymac

MacKeeper: http://mackeeper.zeobit.com/buy-now-llz