In no specific order my fave 5 at the moment is probably Kelly Clarkson, Cobie Smulders, Rachel Mcadams, Melisa Fumero and Kate Upton. North America the continent of choice.
Of all time I would say Gene Tierney. Currently don't know if she's the most beautiful in the world but Lili Simmons from Banshee is my fave.
Mmm, I have obviously hit middle aged out-of-touchedness, cos I've only heard of one of them, although the one I have heard of (Rachel McAdams) is indeed a cracker.
Jessica Rabbit! <img src ="http://howrudoing.files.wordpress.com/2011/04/jessica_rabbit_wallpaper_by_tyramen.jpg">
Carey Mulligan or Christina Hendricks or Angelina Jolie or Wunmi Mosaku or Romola Garai or Keira Knightley or Helena Bonham Carter (particularly when she's smoking), or Sandra Bullock (now she's got older and grown in to herself) or Maxine Peak or Kelly McDonald or Lauren Laverne or Emma Thompson or Olivia Colman (who isn't I suppose, but I love her) or Elizabeth Morris or Jennifer Doveton or Elisabeth Moss or Suranne Jones or whoever I happen to be daydreaming about at the time.
Kelly Clarkson: Singer but currently pregnant so not been seen for a while. Cobie Smulders: The reason to sit through the final (and worst ever) series of How I Met Your Mother on E4 on thursday nights. Rachel Mcadams: Hot in Mean Girls with blonde hair, hot in Notebook as a brunette, and hottest of all imo in my favourite movie of hers Redeye as a redhead. Melisa Fumero: In another E4 thursday night comedy cop show Brooklyn Nine Nine. Kate Upton: Swimwear model but lately loved for her white bikini scene running along the beach in comedy film What Women Want. For thinking mans crumpet plenty like women like Carol Vorderman and Rachel Riley but i'd say History channel show Pawn Stars rare book expert Rebecca Romney.