Readers Review: Laundry Detergent

Okay, readers!  We want to know.  What is the best laundry detergent you've ever used?  Or is there one you wouldn't recommend to your worst enemy?  Have you tried anything new lately?  Or maybe you have an old standby laundry detergent that never fails?  Time to share your wisdom with fellow readers by posting a short review of your laundry detergent.