He’s pretty average to me. I find him neither particularly attractive nor repulsive.
Aw man, now that you’ve said that I really want to see an adaptation of Good Omens where Cumberbatch plays BOTH Aziraphale and Crowley.
Attractive, but not entirely in human way. Probably why he appeals to those of us who enjoy SF/Fantasy rather than those who don’t. It’s why Spock is more attractive than Kirk (although Sulu is hotter than both).
I don’t know about that. I’m a SF/Fantasy person who also finds Spock (both versions) more attractive than Kirk (both versions) and I do tend to gravitate toward the “quirky-attractive” guys over the conventionally attractive ones. But I still think BC looks like a goat. 
I Googled his parents after I read the above-linked interview. His parents are good looking! So now I find him even more attractive!
He was Stephen Hawking and Sherlock and now a famous character from Star Trek lore. I don’t care what he looks like, I am socially obliged to love him (and I do).
Yes on Benedict Cumberbatch – no on Steve Buscemi (and on Benicio Del Torres and Billy Joel, also often placed in this category).
ETA: And, BTW, no on Channing Tatum, who does, indeed, look like a thumb – albeit a thumb with some pretty serious abs. And who seems to be a perfectly nice young man.
Wow, I didn’t know that was his mum! I remember her from UFO, and yes, she’s a really good-looking woman.
I never thought he looked like a thumb before, but that is now all I will ever see when I look at him, so thanks for that.
He’s attractive in the pure sense of “it is hard to NOT watch him” instead of in any sexual sense.
His voice is sinfully delicious.
Together, makes for a fascinating person to watch act, not someone I would like to actually DO anything with (sexually or otherwise).
Johnny Depp falls into that same category for me, although I do think Depp would be an interesting person to have a conversation with/hang out with - I don’t know enough about Cumberbatch to have an opinion about that.
Vin Diesel is my go-to for perfect match of personality, physicality, and face. His face is adorable, his body is to die for, and he has admitted in public that he plays roleplaying games. Pardon me while I fan myself. 
Don’t drag me into this!
Oh, I see. Carry on.
I’m not the first to make this observation, but Cumberbatch and his “Sherlock” castmate Martin Freeman would make a brilliant Crowley and Aziraphale, respectively.
He was a rather adorable teen boy in Hugh Laurie’s TV series Fortysomething ten years ago, but I agree that he didn’t turn out handsome as a grown-ass man.
However, as others have said, with what he’s got he don’t need no handsome. He has that inimitable quality of “watchability”—it doesn’t matter whether you like his face or not, it just draws your eyes when it’s onscreen. Throw in the voice, the acting chops, etc., and it all adds up to one of the most enthralling not-really-attractive men in show business.
They really would. Chemistry and all.
Let’s put it this way: Benedict Cumberbatch or David Tennant?
Ummm, yeah.
Goin’ with Tennant.
Every. Single. Time.
If you don’t know who that is, look him up. It’s worth it.
I think his chin and his adam’s apple conspire to make him appear chinless when his mouth moves (smiles, talking) and sometimes when you look at his face head-on. But then he probably wouldn’t have such a killer voice without the prominent adam’s apple. He kinda reminds me of Anthony Edwards from the nose down.
I do have a lesbo-crush on the whole enchilada though. He gets lots of props in my book for supporting projects that fuck with gender roles and sexual ambiguity (TtV, Sherlock, etc).
I think he’s completely luscious. That voice, those eyes, those cheekbones, that charisma …
…
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I’m sorry, did you say something? Er, Benedict Cumberbatch, right, the man is simply smokin’.
You and me both! Not even the hint of a contest! 
It’s the receding chin and jaw which is probably disturbing people. And when he looks up jutting out the jaw to compensate, then there is a prominent upturned nose which is problematic.
Every time I see the name I think ‘Englebert Humperdink’
I always think ‘Frumious Bandersnatch’, but it doesn’t detract from his appeal.