GRE or MAT?

I am planning to apply to Case Western's post-master's DNP program. They just required satisfactory scores on the MAT or GRE. How do you decide what to take? I think I'm going to do horrible on either one.

I have always dreaded the GRE. I made sure I went to a MSN program that did not require the GRE. I think I would do OK at the math after studying and OK on the writing. It's the verbal part that would get me in to trouble. I have bombed all my practice tests and have made minimal progress on my GRE vocab flashcards. I read a lot of scholarly books and got a 3.6 in my ADN, 4.0 in my BSN, and 4.0 so far in my MSN (graduate in June). So I'm not sure why my vocab is AWFUL or how else to improve it. It's also a long and expensive test.

The MAT sounded easier. It's short and simple (just analogies). Aaaand then I started doing practice questions. You also have to know some vocab (although less). And then you have to know random minute knowledge about obscure areas! Like the name of the sperm in a whale or what Beijing was previously called. How do people know this and how do you prepare?

I feel like I'm doomed regardless. Any ideas?