Why not a wooden boarded floor? I have never had aluminium, but I have heard/read it can be difficult to remove when putting the boat away. It is obviously easy to dent, dink or bend. Board floors are easy to instal and easy to repair or replace, and easy to fit things to.
That said, it is all about personal taste. The various manufacturers sell plenty of each kind, so people must be choosing each kind for their own reasons.
__________________
|