Hardwood Length...preference?

Alright, I've got my hardwood vendors narrowed down to 2. The primary difference between the two advertised products is the length. This is 5" wide, 3/4 inch solid hardwood...both at essentially the same price.

Vendor 1: Boards range from 12 to 72 inches, average length of 42"
Vendor 2: Boards range from 12 to 84 inches, average length of 39"

Vendor 1 has a more uniform length, but tops out at 6 ft.

Vendor 2 will have some longer boards, but a shorter avg. length (and thus some more short boards.)

Which length profile would you consider to be more ideal...or am I splitting hairs here?