The short answer is that uBlock Origin is what almost all users are likely to want. uBlock (without Origin in the name) is property of the same owners as AdBlo

The short answer is that uBlock Origin is what almost all users are likely to want. uBlock (without Origin in the name) is property of the same owners as AdBlock Plus, and both extensions whitelist ads under their owners' "Acceptable Ads" program, with many of the advertisers paying for that special access.