Here's the worst one(s):
#1. Packard Bell PCs (1986-1996)
When PC World decided to name the ten worst PCs of all time, it was a virtual lock that a Packard Bell machine would grace the list at number one. The only question was, which model? It was an impossible choice.
Part of the problem was Packard Bell's strategy of selling nearly identical systems under different names, depending on where they were sold. So the Packard Bell Legend 406CD hawked at Circuit City was more or less the same as the Axcel 467 on the shelves at Staples or the Force 480CD sold at CompUSA, making apples-to-apples (or in this case, lemons-to-lemons) comparisons impossible.