No doubt it is a "silly" question. Both will do the job. I'm not even thinking of performance.
But you know how it is. You plan for opening day. Make sure you have everything you need etc. Then when it comes to choosing the gun that goes out with you and you have 2 or more that will do the job well, which one do you pick?
I am leaning towards the 270 for the same reason you mentioned. I havn't shot a deer with it yet.