oh... hard question... I like them the best, when they interact together in Goblin... but if I have to choose... 
   
depending on the look: Gong Yoo
emotionally: Lee Dong Wook
Lee Dong Wook
Honestly, I can't understand people's fascination with Gong Yoo (my personal opinion)
gong yoo.... hes really nice and hes really open about issues hes had in the past...and he likes cats. so hes my choice ajdjdkfjslsl
Why bother to ask? Lee Dong Wook is the ultimate answer :D He's amazingly handsome, talented acting and has unique charm. Unfortunately I think he has fewer project compared to his counterpart Gong Yoo. 
This is one of those questions which is impossible for me to answer. I just can't choose from the two. I love them both. 
Lee Dong Wook! Grim Reaper is daebak ;-)
I love them both, but in the end I will choose Gong Yoo.
Dong Wook Dong Wook Dong Wook yeahhhhhhhh
maybe thats just bc of roommate but who cares
before I watched Goblin i would've chosen Gong Yoo anyday but after watching it I'm all for Lee Dong Wook, lmao

I say Lee Dong Wook my mother says Gong Yoo

It has to be Lee Dong Wook, after watching Goblin I had this strong urge to binge watch on all his other famous dramas and the guy didn't dissapoint at all!  His happy go lucky personality makes it even better 😌