It's hard to tell. This administration is so secretive that it's hard to know just how corrupt they really are. Other administrations did a lot of horse trading to get their agendas implemented, and admittedly some of those were fairly rotten. This administration wishes to rule, not lead. There is little negotiation, just demands and iron rule of the legislature. What is visible, the cronyism, no bid contracts, special interests, all look rotten, perhaps worse than it really is. But how to know? Most is hidden.
So if you're saying that other administrations were corrupt as well, there is no arguement. If you are saying that Crusader Bunnypants should get a pass because he's not as bad as others, I would disagree. I think Bush et al. is probably the worst thing to hit this country since the Civil War. And may cause another.