Who would you choose?

[DBear]

Hi all, 

I'm applying to Communication PhD programs and am debating between two profs to ask for a LoR

1) Intl Relations professor from a MA I completed nearly 8 years ago. I only took 1 class with him but have been in contact all this time as we have similar research interests

2) Eng Lit professor from a MA I completed this year. He was on my thesis committee and I took one class with him.

I think 2 seems like an obvious choice but I'm considering 1 because he can attest to my ongoing interest in my research topic and he is an active scholar in that field. 

Another consideration is that the school in concern is pretty interdisciplinary and thought maybe having 2 Lit professors and 1 in the social sciences would be better than 3 Lit.

Thoughts?