Wetteland was not a better pitcher. Nathan's numbers are all around better. WHIP, K/9, saves, WAR (significantly), IP, ERA, and so on. The steroid era is completely irrelevant because you can't prove a reasonable amount of players were taking them prior to 2000 (or the end of Wtland career). As a percent of all major league batters, it's likely pretty small. We'll never more than 100-110 on the Mitchell report. Nathan doesn't have a great case for HOF now, but if he maintains his current form (Always has so far minus injury) for 2-3 years, he should be in. Like I said with saves, 3rd is attainable. If Nathan gets 4.1 more WAR (had 5.1 in the past two seasons combined), he's above every single reliever in the game besides the 4 HOF RP (Including Rivera). Much of Eckersly's value came from being a starting pitcher prior. As a relief pitcher (age 32-43), he had an ERA of 2.96, 8.8 K/9, .999 WHIP, and 790 IP. Which translates to 16.8 WAR which is much less than what Nathan has produced. In terms of true relief pitchers Nathan could very well end up behind Rivera, Gossage, and Wilhelm only if the former occurs.