I love Dragon Quest myself. VIII was visually stunning, deep, and flat out enjoyable.
Putting DQ on Wii might actually help its fanbase in the US as well. It tends to get so overshadowed by the FF titles over here, if it's on a different platform it might be able to climb out from behind FF's shadow.
Though if Square is hesitant to move the main series to the Wii, a Wii installment of the DQ Monsters game would be very welcome as well. Admittedly it's a bit less mainstream, but the series always had amazing replayability.