I haven't tried QB but here is my comparison of Quicken Home & Business and Peachtree. So far I have found PT to offer more of what I am seeking. I think, like most all other competing software packages, the two really don't differ by that much. They both use the 'workflow' layout (buttons arranged in a typical workflow, quote -> sales order -> invoice, etc.). Companies see what works between competing packages and incorporate those things into their own software.
I have tried both Quicken Home & Business 2008 and PT Complete 2009. I am leaning towards PT as I one of the big things that I can do with PT but not with QB is to have a line item for Deposits. I am sure this has to do with the versions that I am using but Quicken H&B and PT Complete are about the same price-wise and I don't care to spend more than $250 for an accounting package. If anyone knows how to do this with QB please let me know!
Another bonus I found yesterday is that PT rep sent an email saying that new user to PT can get the PT Complete 2009 (Single User) for $169 vs the $269 list price.
As for the download of data from banks, etc. PT uses the standard OFX file format, QB's QFX and MS Money format which I believe most any bank supports at least one of these. The one downside to PT that I have found is that I have to manually download the data file from my bank and then import to PT. QHB allowed me to do this through the Update Now function (one button click and password and it is done). PT does support some banks for automatic import, just happens that mine is not on the list.
HTH