The new trailer is fantastic, even better than the excellent STNG bluray trailers. This series is by far the best LOOKING series, and the higher resolution will show it, can't wait.
While not my favorite, DS9 will likely take the crown of "best looking" series if it gets the same HD facelift as TNG.
I think from space FX, to CGI landscapes, to the quality of the sets designed from the outset for HD, Enterprise deserves the prize. It also was nominated for the most Emmys of any ST series for FX receiving THREE in season 2 alone.