The three companies that will go into further development will be Bue Origin (the "National Team" of Blue Origin, Lockheed Martin, Northrup Grumman,
and Draper lab), Dynetics, and SpaceX.
Blue Origin/National Team
Blue Origin, the lead contractor on the team, is owned by Jeff Bezos (of Amazon).
Northrup Grumman, who is a member of the National Team, designed and built the Lunar Module for the Apollo Program (when they were just "Grumman").
Lockheed Martin designed the Orion Crew capsule, which -- for now -- will need to dock with the lander, no matter who makes it (see SpaceX below).
The Blue Origin/National Team design is in concept similar to the Apollo LM in that it has a separate ascent stage and the descent stage will be left
behind. NASA wants the lander to be as reusable as possible, and it would seem this design is not fully reusable
Dynetics is unique in that it is a single stage (not two separate stages like Blur Origin and lik ethe Apollo LM was), and the crew cabin is closer to
the surface for ease of exiting/entering for EVA.
SpaceX's Starship will likely not be ready to go to the Moon at the time NASA wants to do so (NASA says 2024, but that may/will likely slip). Nor
does SpaceX have a capsule that will likely be human-rated to go to the moon by then.
So if SpaceX is chosen, it is my opinion that the Starship design pictured below will NOT be the one they use for the Artemis landing that is supposed
to happen in 2024. It will likely be something else, although it might still be fully reusable like the Starship.
Having said that, the Starship-style design might be something to consider for the future, especially if it is also able to bring heavy equipment with
edit on 4/30/2020 by Soylent Green Is People because: (no reason given)