Help Me Decide- Exact Match vs Authority Domain

Hi there,

So that's my dilemma at the moment. Let me explain more by giving an example - unfortunately I do not want to give away the real domain on this thread for obvious reasons.

So I have 2 domains types of considering:
a) one if the exact match domain type but with a small suffix at the end
b) the other is not the exact match domain but only has two of the keywords in it.

Pros for a): exact match domain
Cons for a): domain name quite long (26 characters all up)

Pros for b): shorter domain and flows better off tongue
Cons for b): not the exact match

For this example:
xyz1 = first keyword
xyz2= second keyword
xyz3 = third keyword

1) xyz1xyz2xyz3suffix.com
- So this is the exact match domain and keyword difficulty is 55%
- Looking at the landscape on the first page I know with some work that getting there is definitely achievable


2) xyz1xyz2suffix.com
- So this is the shorter domain with two out of the 3 keywords in it. Keyword difficulty of this keyword is crazy like at 80%


Anyway essentially I'm offering a service but I plan to build this in to an authority domain as well. Like with references and I might do some blogging.

So I guess my overall dilemna is this....do I go for the exact match even though I'm not in love with the domain name but I know it will rank quicker...that is important too as want to make money

Or with the view that google is moving away from exact match domains do I go for the shorter version? I mean I do agree Google is potentially moving away from EMD's however a lot of these guys still rank really well.

Anyway hopefully this is not too confusing!

Let me know you thoughts.