To Sleeve or Not To Sleeve

How do you like your LBDs?

Sleeveless
Jessica Biel in ruffled Gucci Gown 

Jessica Biel - Premiere Of Fox Searchlight Pictures' "Hitchcock" - Red Carpet
Jessica Biel - Premiere Of Fox Searchlight Pictures' "Hitchcock" - Red Carpet

Sleeves sewn to Dress

Naomi Watts in  Tom Ford Sleeve sewn to hem of skirt dress