I am a WALD fan, just for sheer function. They are heavy and asthetically put you straight into granny-league, but they really are good for hauling heavy loads and the chrome shine looks good on any bike.

I do not like the folding WALD baskets because I have seen too many of them over the years that get dented and become non-functional or very difficult to unfold.

My preference is the sidesaddle baskets. You don't want to burden your everyday rig with those big twins, but most serious bicyclists have more than one rig anyway - at least one bike for shopping and hauling stuff and another their "sporty ride" for fast transportation, dates, and the like.