I can't decide

I'm making a headboard out of this black cut velvet fabric:

*This is a Petunia Pickle Bottom "Cake" diaper bag - the inspiration for my bedroom

Anyway, I can't decide on a duvet cover.  I like white linens.  It reminds me of sleeping in a hotel room bed. I always sleep better in hotel rooms.  The sheets are so crisp and cool.  Ahhhhhhh. 

Which do you like best?

Italian Linen from Restoration Hardware:

Belgian Linen from Restoration Hardware:

Matelasse from Pottery Barn:

Or this stuff on clearance at Restoration Hardware (in white, of course):

Or this Linen velvet trimmed set from Pottery Barn on clearance: