To whom should I ask for LOR??

[dis13]

Hi, I am planning to apply to a MSc course for 2018 in the UK.

I need 2 academic referees and I don't know who to contact for the 2nd letter.

My counseling professor agreed to write the 1st letter and I am deciding upon 2 other professors for the 2nd one.

1. A professor who is very fluent in English (he is American and I go to uni in South Korea) with alot of experience writing recommendations.

However I heard all his letters have similar context so if I apply to the same department a former graduate have applied to with his letter, the admission office will probably read the same thing with a different name.

2. A Korean professor whom I took all her classes throughout uni. 

She knows me well but her field of study is unrelated with the department I am applying for and she is not a fluent English speaker.

 

I respect both professors but I can't decide who to email.

Any help would be appreciated. Thanks in advance. 

[Levon3]

My hunch is that the latter would be better. If she knows you well, and can write in detail about your work and aptitude, this seems more powerful than a stock letter that they may have read before. How well does the first prof know you?

(Also, keep in mind that I am a 2nd year PhD student, so I may not know what I am talking about.)