The best is Component.

There are three types:

RCA Composite: This carries the video signal through one RCA cable. Most VCRs use this connection format, which provides the least quality.

S-Video: Uses a cable with a round DIN port. This provides excellent sharpness and nearly the best color accuracy.

RCA Component: This method requires three high-quality RCA video cables. Do not buy an A/V cable, which has Video plus left/right audio, as the video and audio cables do NOT have the same properties. Using this provides the same sharpness as an S-Video cable, but many also find deeper, richer colors.