Originally Posted by Freebase Dali

^ True @ Dac.

But honestly, this is a bit of a tall order... 10 years is a pretty hefty time period in which horrible bands can spawn. A lot of them are equally horrible due to the format by which they adhere, so at least that narrows it down a bit... but you really have to sort through a lot of garbage just to find the crowned jewel of most horrible band in the last 10 years.
Collectively, I think it'd take the NEXT 10 years just to get an average opinion on who sucked the most in the last 10 years.

But being that this is all a subjective thing, I echo what Dac said and say you won't find a common ground that isn't already a cliche'... most of what this is, is a venting ground for who "you" hate the most, and personally, I think there are already plenty of threads around for that.