Gee, Kevin, thanks for the contribution. 
She’s got a little bit of a Gwyneth Paltrow look about her, methinks. I don’t find G. Paltrow to be excessively hot, but I like Rachel Riley.
Although I often answer differently whenever this question comes up (for instance, my current flame is Charlize Theron, though I could be lured away by Sasha Alexander), I always go back to my tried and true- Tilda Swinton.
And I can never decide between Hugh Jackman or Daniel Craig.
Jeremy Northam is my cup of tea. He’s gorgeous when he is charming or ruthless. He’s also really brilliant at acting. I see similarities in anyone I crush on.
You picked Tilda Swinton - that should work for both categories, as that woman is the definition of androgynous. My date during Constantine nearly had a heart attack when I told her Gabriel was being played by a woman.
I’m no fan, but objectively Ms Zeta Jones can be pretty stunning. My personal favorites are Alice Eve and Rosamund Pike.
For men, Henry Cavill is your winner.
You know, I think from now on, Tilda Swinton will be my answer to both questions. Thank you!
This whole debate just became moot with today’s announcement that Jaimie Alexander is set to do a guest appearance later this season.
Jaimie Alexander was also on an episode of It’s Always Sunny in Philadelphia during its first season.
And I think Amber Heard deserves at least Honorable Mention.
Ooo, and Emma Stone: http://trend911.com/wp-content/emma-stone-and-revlon-colorburst-lip-butter.jpg
And Gemma Arterton: http://www.hollybollyhub.com/gemma-arterton-hot-wallpaper.jpg
And Natalie Portman: http://images6.fanpop.com/image/photos/34800000/New-Your-Highness-Pictures-natalie-portman-34857524-3328-4992.jpg
OK, I’ll stop. For now.
I prefer Rachael Leigh Cook to Natalie Portman, myself.
Emma Stone. Though I can’t decide if I like her better as a redhead - http://wallpaperich.com/emma-stone-5392-hd-wallpapers.html or as a blonde - http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_article_large/public/2012/06/20/283059-emma-stone.jpg
Colin O’Donoghue could turn me gay - http://i1.cdnds.net/12/40/300x225/ustv_once_upon_a_time_colin_o_donoghue_captain_hook_1.jpg
Man: Nestor Carbonell.
I’ve noticed that a lot of straight dudes are too afraid of catching teh gay if they so much as recognize that another dude is good looking. I’ll return the favor by pretending not to acknowledge female beauty.
[/rant]
Kate Beckinsale is one who does it for me.
Also Nina Dobrev.
Sasha Alexander, blonde or brunette?
The answer to that question is always redhead.
I think that Cate Blanchett is absolutely beautiful, and if you had a contest where looks and talent were added to produce a final score, it would be her and then daylight. Hell, she’d be at the top on talent alone.
For guys, i’m going to be boring and say George Clooney, although Jon Hamm isn’t far behind.
Cersei - Lena Headey - the Black Queen
Speaking only for myself, here… But it’s not that I’m afraid of “catching teh gay”. It’s that I really can’t judge male appearance as readily as I can that of women. My resolution isn’t nearly as fine. So I can recognize that, say, George Clooney, Chris Hemsworth, and Hugh Jackman are all attractive, but I can’t even begin to say which one of them is more attractive. With women, by contrast, I can say that Scarlet Johansson and Christina Hendricks are both smoking hot, but that Johansson is slightly more smoking hot (in my personal opinion, anyway: I won’t argue with anyone taking the other side, because they’re both very high up there).
Jon Hamm. Case Closed, contest over. (OK, runner up: Nathan Fillion on Castle)
Women? hard to pick! I am always drooling over Christina Hendricks. (runner up might very well be Christina Applegate in her ‘Married With Children’ days, my GOD she was beautiful in every single episode. Past that first awkward year.)
Now, if you mean ‘attractive’ beyond physical looks, I would have to say I am very attracted to Robert Carlyle (Once Upon A Time). He is just mesmerizing.