ok, maybe we need to refine what we're calling all the bits. lol There's the little blender which I'm assuming is the immersion blender, and then there's what I call the stick blender which is what I think you're calling the prep chop? eta: I think I've got it the wrong way round now I'm looking at it again
Either one works well for the applications I've mentioned. Dips are good in the little blender because they're a small amount.
The stick blender is good for larger quantities in a saucepan, such as soup.
I've labled them