I'd take Gagne's 2003 over Gossage's 1981. Gagne had 55 saves, a 1.20 ERA, 335 ERA+, 0.69 WHIP, and 15 K per 9 IP. Gossage had 20 saves, a 0.77 ERA, 465 ERA+, 0.77 WHIP, and 9.3 K per 9 IP. The biggest problem I have with Gossage's season is that all his stats are in line with his other seasons except for his BAA, which is absurdly low. Gossage wasn't striking more guys out than usual, and his walk rate was basically identical to what it would be the next year. So, this suggests that Gossage was pretty lucky in posting such a low ERA and WHIP that season. I believe that if the full season had been played, and not 2/3 of a season, that there would have been some leveling off of his numbers. And I guess beyond that, I guess I just have a hard time taking Gossage's 1981 season as one of the best relief years ever when he only pitched 46 innings, versus 82 for Gagne in 2003, or 73 for Eck in 1990.