Pokertracker or Pokeroffice

Which one is better and which one do you prefer?

I like Pokeroffice (and that's the one I use) because of the built in table overlay and the icons shown. I'm not very familiar with these programs so I don't know the differences between these two.

And I read that Holdem Manager will be even better than PT and PO. It will have everything the other 2 have and more.

http://www.holdemmanager.net/

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That's Poker

so do these tracker things veiw other peoples stats?