Toro ZTR 42 or 50 inch? Different engines

Ok H&G Baws, we have a decision to make.

Getting a new Toro ZTR. I would prefer the 42" (space limitations and getting through gates etc), but it comes with a Toro branded engine.

I could go with the 50", which is not quite what I want, but it has a Kawasaki engine.

Should I suck up a little inconvenience to get the Kawasaki, or that not so important?

All thoughts appreciated

Thanks