1. Monster Party (NES) vs. R-Types (PSX)

Pass. Hard to put one over the other here. They both hold about equal status with me.

2. Super Mario Land (GB) vs. Oddword: Abe's Exoddus (PSX)

Pass. Played neither.

3. Maniac Mansion (NES/PC) vs. ActRaiser (SNES)

Actraiser. Actraiser is pretty decent, Maniac Mansion is pretty blech.

4. The Legend of Zelda: A Link to the Past (SNES) vs. DuckTales (NES)

A Link to the Past.