Yes. Definitely.
I can only judge from what I know for a fact.
I've known EBH since he was 15, pulled out of the woodlands somewhat near Lillehammer, Norway. He was high on spruce-juice, but otherwise clean as a whistle. He has consistently delivered in accordance with well known results from tests of O2-uptake, Hct etc. from the get-go, and the fact that he's won stages in TdF tells me all I need to know. Cycling IS cleaner today. Cleaner, but not necessarily clean.
I've ridden along with Nordhaug in MTB races since way back when, and his progress is definitely not down to advanced pharmacology.
I won't paint an entirely rosy picture, though. I wouldn't trust a spaniard for a sec. Aldirto, Piti, Rodriguez or whomever. Or russian, or italian. They emanate from a culture of dope, mischievousness, behind-the-scene agreements and oh, so clever doctors having sold their soul to the devil.
I'll believe the TdF is clean the day that the yellow jersey goes to a guy from Iceland. Or Eritrea.