FOR the OP ,and others interested , Rational Madman doesn't use either , doesn't have a clue about each program capabilities and what he is saying is as usual wrong.
I own both and use Both PT4 and HEM2 and alpha/beta tester for HEM3. Purchasing hem2 now will get a free upgrade to HEM3 when it is released.
use the months free trial for HEM2 , PT4 , drive hud , xeester , hand2note and you will have 5 fee months of HUD use to make enough to buy 1 of them that youprefer. Alternatively you can sign up through some of them to a new
poker site grind X amount of rake and then you get a full version of the software free. Check that the software you offers this promotion though.
Jivaro is overpriced with limited functionality. As a direct comparison for the subscription model , for micro stakes jivaro is 4.99 per month and works on pokerstars and WPN , drive hud is ~10$ for a full year , with a lot more functionality and support for a lot more sites.