I like nvidia, have been a happy customer for years. Wouldn't consider an alternative at this point.
I'm simply happy to have offical drivers, open sourcing them is their option.
My only flame is the notable lack of features and amenities in their current drivers. A control panel would be nice, a utility to set up X config files for twinview et al would be welcome and finally, being able to use video-in (as another thread by me states) would be very nice indeed.
hrmm... I'll have to try harder, I don't think I even got to medium heat