I'll Bite. And remember that opinions are worth about half of what you paid for them here !
I'd comment those are two rather different choices - and only you can decide which one is right for you.
Slimline featherbeds of the Atlas variety are renowned for their sharp handling - and less than smooth ride shall we say.
Commandos are renowned for their isolastically smooth ride, and the jury is still mostly out about the sharp handling.
They can certainly be made to go fast, and they've lapped race tracks faster than their featherbed cousins - but that is
with race riders aboard, and only they know how hard they were pushing.
Cosmetically, its easier to make a featherbed look like a cafe racer - but plenty of Commandos are about in cafe guise too.
Only you know how deep your pockets are, and how much $$$ you wanna spend on this.
I'd comment you sometimes see cafe racer bikes for sale that seem a real bargain - tough to sell like that ?
You also see them with sky high asking prices - a reflection of how much has been spent, perhaps ?https://caferacerforsale.com/ad/norton-atlas-750-cafe-racer-1963-featherbed-unity-equipe/https://www.returnofthecaferacers.com/norton-cafe-racer/ed-norton-commando-cafe-racer/
I'm going with an Atlas powered wideline, and a fairly stock Commando. Both still projects at this stage,
and a fairly leisurely build schedule. Mostly because thats what was in the garage, and achievable !!?
And other assorted projects, money pits all of them ....