Zoom vs Rush

Anyone noticed big difference in those two very similar (same) poker ´variants´? I have been grinding over a month on both FullTilt and pokerstars and NL10 on FT is SO easy it´s not even fair, haha. Playing at PokerStars seems to be much harder (yet beatable). Anyone shares the same view?

In general ftp is softer than stars.

Bovada also has what is called Zone Poker same as rush or zoom fyi.