Web 2.0 sites or PBN, which one do you prefer more to build quality backlinks?
Both are good and both are in play. So, both can be used to get ranked. Personally, I think web 2.0 are better. As they take less time and effort.
PBN is very good for ranking in Search consolo. With 2.0,you just can various kind of link, it has quite small effect
Web 2.0 is better built backlink. It's very use to use.
Both are good for your website and both will help in getting rank and traffic to your site.
Both are good for a website.