Neither Buffalo nor Iomega manufacture hard drives, they buy in from others (probably including WD), so you might end up with your bete noire anyway.
Iomega has a history of rotten customer support, and poor reliability - although that does refer more to the nineties than the noughties! They are now a subsidiary of EMC, since June last year, so should have access to decent storage technology.
I would compare the features of the drives, and also read customer reviews to help make up my mind.
SD