Rinsing
Interestingly (or not!) I've found the Australian Colgate-Palmolive powders that I've tried (Dynamo, Cold Power, and Spree) to be better rinsing than than Unilever's Omo and Drive, or Cusson's Radiant.
Using them in DD Whirlpool, Drive, Omo, and Radiant still leave the wash water a bit cloudy on the second rinse, but with the Colgate products the water is clear at this point. I've therefore stopped using the second rinse with them.
This may not apply to front-loader formulations, or liquids. The liquid Omo "for colours" rinses very well, but its the only one I've had experience with.
Everyone's experience (and water conditions perhaps?) seem to be a little different!