I have an '08 LX Fit and have to agree that the OEM tires are crap. They're Dunlop SP31 A/S. Besides giving off plenty of road noise, they have a bad feel of the road.
Last month I put on Michelin X-Ice snowies, with rims, and what a difference. I expected snowies to be louder, but these are quiet and give a nice feel to the road. Much softer.
I know when I got my Michelin X-Ice winter tires for my yaris, i couldnt help but remark how INCREDIBLE they were compared to the stock OEM ones... in the yaris's case, 14" potenzas.
They were def more quiet, smooth. a far, far, nicer ride. that was certainly something i wasnt expecting when i did the trade the first time for winter tires.