The new move towards different distinctions of chipsets for the Clarkdale is interesting. Many will be expecting greater performance by going with the H57 over the H55. However, we just are not seeing it so far. We are finding that, for the most part, the H57 boards have more features (including IGP overclocking).
For the GIGABYTE GA-H57-USB3 I have some very mixed feelings. I think that on the one hand, GB has done a good job of giving an enthusiast style board to the mainstream, but on the other we are not seeing the enthusiast class performance from it. I really do not know how to call this one with H55 board prices right around $100 and the cost of the H57-USB3 a little higher than that, I have to wonder if it is worth it. I suppose if you are looking to pick up a dual core CPU and want to have a pair of 5670s then you would have a great board for that type of setup.
Don't get me wrong, the GA-H57-USB3 is a good board (with a few minor layout issues), I just wonder about the H55/H57 chipset combination as a whole. I guess overall, if you want or need RAID support and USB 3.0 then the H57-USB3 is a board you will want to take a look into. If not, then you might be just as well with a H55 based board.