The third pairing on Hottest Week Group 3 offers up Nathaniel Ross, founder of Chicago-based residential interior design firm Matter and Order. Says Ross' nominator: "He had the luck of the Irish with him when he born a natural redhead, but while his hair color may have lightened a little over the years, his kindness, humor, and gentle spirit outshine any physical appearance." Ross faces off against Lindsey Coral Harper of LCH Interiors, an NYC-based interior designer who has popped up in publications such as Elle Decor, House Beautiful, and Garden & Gun. Which strawberry-haired beaut will it be this time? Cast your votes after the jump.