Privacy Badger has historically allowed tracking until it successfully identifies a domain as a likely tracker. Like the air bags going off after you’ve already wrapped your car around a telephone pole. But it’s now been changed and is now closer to a list-based tracker blocker (enumerate badness):

Privacy Badger no longer learns from your browsing by default, as “local learning” may make you more identifiable to websites.

They’ve since corrected one of the core issues with PB by doing so, but it still it is very weak. To see why, please glance through The Six Dumbest Ideas in Computer Security.

uBlock Origin in advanced mode, with default-deny rules (only allow assets by exception) is going to be much stronger at blocking crap.

Personally, I use uMatrix with pretty much all asset classes blocked by default. I never see popups. I never see banners begging “please allow our cookies, pleeeeaaase!”.