I am not out to get any drive and I have no bias in relation to this poll, but it has been pointed out that people rarely post when they get good drives so we are seeing a skewed representation.
This won't really deal with that problem but it will at least give people some idea of how many posters have had problems with certain drives.
I am also aware that this is not scientific and it is not proportional as related to all drives sold and I know I missed your favorite drive and there are a lot of ways to define "defective".
I am just interested in what will show up and I am looking at current and recent drives.
ADDED: as noted below, please do post your rebadged drives in the list above under the original manufacturer. I am aware of some of them but I don't want to try and cover them all and you know better than I which models they are.