I think the clear AeroPress is definitely the most practical. Part of my AeroPress recipe relies on agitation and waiting for the coffee to sink to the bottom to form a "puck", which is easier to see in the clear AeroPress for sure. But then also, I've been getting great coffee out of mine for the last couple years. I've just gotten used to the idiosyncrasies of the semi-opaque press that I have.
Also, I'm curious what your experience has been with Wacaco. To me the Pico/Nanopresso have seemed interesting from a travel perspective, but for home brewing don't look too useful. Curious what your primary use case is.