Maou or The Devil??

Hi!!! :)  I like to know if The Devil or if it's Japanese remake, Maou is better.  My sister watched Maou and she said that it was great!  I'm wondering which one to choose cause I'm not sure if I'll watch both the versions, cause it would spoil what I watch 2nd since I would know what's going to happen.

So if anyone could tell me which one is more worth watching, I would appreciate it! :) :) 

Also if there's anyone who has watched both, I'd appreciate if you could explain which one is better without any spoilers. 

Thanks!! :)

Ohh I see!!  Thanks!! :) BTW is The Devil too slow or is the pace okay??   And what did you prefer??

Ohh really??  Then I guess I would like the speed of The Devil :)
Ohh wow, yeah anyway J-dramas are much shorter than K-dramas.  I was wondering if the K-drama was just dragging...but like you said, if it has more details then it's okay!
Lol I didn't even think of that!!!  I'll think about it a bit more....and maybe I should even consider watching both simultaneously!! :D   Thanks a lot for your opinions though!! :) I appreciate it!! 

Ohh okay!!! Thank you so much!! :) :)
I think I would like them. My sister was watching Maou and so I saw like half of the 1st episode and it looked great! I couldn't continue watching with her and I got to know about The Devil as well, so I was kind of in a dilemma.   I think it's best watching both, unless I decide to drop one of them halfway through...but I'm sure I would like atleast one of the two :)

Maou opening .. only Ikuta Toma could pull off a  'walk backwards turn around and leggit' movement look so sexy haha. Watching it currently and its as a PP says it's quite fast paced (maybe because the lack of episodes) but it's not totally grabbing me at the minute. Only on episode 3 and i usually like that sort of things but there is something missing for me (not sure what). I've not seen The Devil so can't compare the two for you.

maybe maou missing a lot of light moments since its fast sometimes will not let you have time to breath and relax
I mostly like slow because i want to chill and think :)

btw  i think Maou is a heavy thriller and Mawang is a mystery drama ...  since i have watched the japaense one first (i didnt know theres a kdrama original before) mystery was gone for me but other good stuff like character developmnet fills me :)