What is your opinion on the best archiving/compression/Zip type program?
Anything that you have to pay for would have to do something special to be better than the free stuff.

I have tried IZarc http://www.izarc.org/ and ZipGenius http://www.zipgenius.it recently but I am currently using TUGZip http://www.tugzip.com/

All three of these are free and all support 7-Zip, RAR and Zip, however, IZarc doesn't look as pretty as it could and ZipGenius has some issues with complicated archives that contain other archives and folders etc

Does anybody use anything better than TUGZip?