Was Biggio Treated Differently Than Other Members Of The 3000 Hit Club?

It looks like 12 of the last 13 guys with 3000+ hits got elected in their first year of eligibility. The one who did not is Palmeiro. The streak might even be longer since I am starting with Brock in 85. Two of these guys had less career WAR than Biggio (62.1). Winfield (59.4) and Brock (42.8). Murray (63.4) and Gwynn (65.3) were just slightly higher.