"Of his era"?
I'd hope everyone know that Rickey takes a backseat to nobody.
I don't think they're saying Ichiro and Henderson are from the same era, just comparing Ichiro to other great leadoff hitters. And since we're comparing:
Ichiro: 291 2B, 79 3B, 1184 R, 98 HR, 633 RBI, 439 SB,
Henderson: 507 2B, 66 3B, 2244 R, 293 HR, 1100 RBI, 1384 SB
Ichiro was a great player, and a fine leadoff hitter. But let's face it, he was no Rickey Henderson. Not even in the same league, career-wise, even.