Both are really easy on the Propeller, but NTSC is actually easiest, and it uses the least pins and discrete components.
The Propeller has hardware assisted video signal generation. It is a lot of fun to program and one can basically duplicate a lot of old computers video signals.
One advantage NTSC has over VGA is when using a component video capable television. The Luma "Y" output can drive an HDTV in monochrome all the way up to 1080i using one single pin!
The Propeller chip used in this project may not be capable of 1080i, but it can do 720i.
The Propeller has hardware assisted video signal generation. It is a lot of fun to program and one can basically duplicate a lot of old computers video signals.
One advantage NTSC has over VGA is when using a component video capable television. The Luma "Y" output can drive an HDTV in monochrome all the way up to 1080i using one single pin!
The Propeller chip used in this project may not be capable of 1080i, but it can do 720i.
The P2 chip can do 1080p and more via VGA.