Ok, thanks for your answers - now I'll explain some of my thinking! :lol::lol:
I agree that the 7x5 enclosed area (shed or kennel) is bigger, but the outdoor area wouldn't be as long (10ft Vs 9ft), so is square footage more important than number of hops in a row?
Also, the enclosed kennel run Vs aviary part was to gauge oppinion on how important protection from the elements is when bunnies are in the run. An aviary would be open on all four sides, whereas the kennel run is only mesh on two sides, giving more shelter.
Any thoughts?