I'm thinkin' you want one of those because digital and comes with fans?
And I'm sure you know that H70 is same as H80 w/o digital/fans, and 920 has a bigger rad than either.
I have the 920 w/stock fans and like it a lot. Cools very well, quiet unless as stated the r's go high., then it doesn't bother me either. Has longer, more flexable hoses if that matters.