Thanks Ladies!
You know, that little coat just sort of happened! It is kinda fun to try out some ideas which don't take weeks to finish!
I would say that technique-wise crocheting is faster than knitting and allows you to go totally free form and change directions much quicker.
But I have to say, when I am playing around with a project like that, usually in the evening, the exercise app on my Apple watch is positively yodeling. About an hour of knitting or crocheting translates to about one mile walking!
My last project, a 12 foot Dr Who scarf translated to the equivalent of almost 2 marathons!