Cordless all the way.

My Dewalt is atleast 10 years old, rips through plywood no problem. It might balk at 2" of hardwood, but I have never tried. I also have a battery powered track saw, that will chew through 2" of hardwood.

Sometimes I bring it to the store even, I'll rough cut a sheet in the parking lot to fit in the car so I don't need the trailer.