I do agree the Amiga CD-TV(32) was a bad iteration of the Amiga, but it did have the best damn game of Pirates Gold on any system. It had full cd audio which made it heads and shoulders above the Sega Genesis version (the same version without the cd audio). The other versions of Pirates Gold on the PC, Mac, and Amiga (all disk based) were terrible. The DOS version was better than the barely installable Windows version.
I agree the Tiger.com was a terrible system, ended up giving mine to a neighbor kid after having it two weeks with most of the games purchased.
The least favorite off all the systems and computers I have owned though would have to be my Atari 5200. I have had no less than a dozen controllers break. I have ordered controllers off of eBay and bought systems and controllers at thrift shops but after a week or two they always quit.
I really love my 2 Dreamcasts but have to say they were poorly made as the controller ports on both of them quite working after a while. I have to open the systems up and short out some connectors to get them the work. But then they don't work with the light gun, fishing controller, arcade stick, keyborad, etc. They only work with the dreamcast controllers that came with the system (or third party ones). That alone makes the system blow. I do agree it was one of the best systems for the shear amount of good games.