Goodbye Syesha. . .

It’ll be David vs. David. Syesha Mercado was voted off “American Idol” Wednesday night, paving the way for the expected showdown between David Archuleta and David Cook.

Mercado, a 21-year-old actress from Sarasota, Fla., was the last woman standing on the top-rated Fox contest. The big-voiced belter surpassed a more accomplished singer (Carly Smithson), a fan favorite (Brooke White) and a statuesque country crooner (Kristy Lee Cook).

While other contestants floundered, Mercado challenged herself with ambitious song choices like Sam Cooke’s “A Change Is Gonna Come.” She showed more personality — and lots of leg — while swiveling her hips in a glittery gold minidress for a rendition of “Proud Mary.” She cried when Paula Abdul gave her a standing ovation last week.