Trying to think what is a good program to purchase for my poker studying.off the tables.

So far it seems it's between:
PPT Odds Oracle
CardrunnersEV
PokerRanger
PokerJuice
Flopzilla
Equilab

Which would you say is the most useful for a poker player to keep their edge against all the gto/software wizards? (not really game specific, hence the inclusion of PokerJuice)., Feel free to add any program I missed.