THX certification: which products deserve it?

Everyone knows THX has been the go-to standard for top-quality home theater product for over 25 years. However, a glut of inferior product with THX branding is also out there, if reviews are anything to go by. My question is, which speakers should I swear by when selecting THX-certified speakers and such?

[MrBrown]

Seems to be some question, alike to religious beliefs... Better do form your own, personal impression.

The selection of your personal Home Theater system depends on too much variables to generalize the answer.

Personally I would choose Teufel THX speakers (Teufel is a German brand) anytime again. They have an awesome quality and sound.