Magazines and parts can be a concern for the Smith. Not as much for the Ruger as tons of 1911 stuff is out there.
Not looking to open the caliber war of .45ACP vs. .40S&W.
If either was laying on the table, with your preferred holster/manner of carry, with plenty of mags what would you choose?
You are right. That would be a hard decision. However, I'd probably take my 40 over the 45. Only because it holds 11 rounds vs. 8...
And yes, my 40 is damn accurate..