If cost is a non-issue then it is a no-brainer, the Benelli is far superior. The thing is that typically cost is a factor for people, so something has to be pretty darned good to justify twice the cost.
I think you would get significantly different poll results if you phrased the question like "If someone was going to give you one for free, which one would you take?"
That is much more realistic for which one people prefer more. I would prefer an Audi S4 over a Honda Civic, but when choosing my next car I can not ignore the cost factor.
If you do choose the MR1, I think this one is the best style. Usually I prefer pistol grips, but I think the pistol grip on the MR1 is wonky, so this is the best looking one: