FWIW, the LSL has a nice view of the Hudson Valley as it heads north from NYC. I've taken both LSL and Capitol within the past year; had AC at the seat on LSL but not Capitol -- but on the Capitol, I was able to find AC easily on the lower level of the cafe car. Then again, my LSL was only slightly late while the Capitol was eight hours late.

YMMV aboard Amtrak, but at least you'll have a good story to tell.