Which crappy monitor option is least crappy?

For my cabinet, I am faced with two rather crappy options. Help me decide which is least crappy.

25" Magnavox tv with coax-cable input only (no S-Vid, No RCA, No RGB)

17" VGA PC monitor.

With the 25" TV, I would need to have a video card with S-video out, then to a S-Vid to CoAX RF Modulator, then to the TV.

I understand that most arcade games don't use an ultra high resolution, but is the TV the way to go?

They're both going to suck. If you already have the 17in VGA monitor, just keep using that.