Stoxev and Pokerstove Holecard range differences

Anyone know why these are so different. You know when you move the slider bar to top 20% or something, the programs give different results and both are supposed to be the top 20% as far as I know.

Look at the example below. Which one is better?

Well doing a few equity calculations in Stoxev shows me pokerstove is more accurate of what the top % is. Too bad they dont use the same formula.

pokerstove is hot and cold equity
stox gives you the best playable hands

Can you explain hot and cold equity a little bit, I'm not positive what it is. Thanks.

Ah I figured it out, thanks.