Complexity is the Name
This is a complex issue. It's is easy to understand and perhaps support tiered pricing in the last mile (a 1Mb/384kb DSL would be priced less than a 4Mb/2Mb DSL). But once that data traffic is on the provider (internet) backbone, then should it be filtered/shaped except for the known priorities (voice, video) which suffers from delays? Shaping traffic according to the status of the destination/source, corporate/private citizen (Google gets priority over Joe Citizen) has not been justified as a consideration to my satisfaction. Even among the corporate entities, can you imagine what advantages say AT&T, Verizon, Google might have over say NetFlix to provide streamed content?
The other aspect of the FCC ruling that was widely published was the ability to block certain sources. While this remains unclear to me, I would be in favor of blocking source traffic identified to be botnets (employed in DDoS attacks for instance), malicious spammers, and a few similarly questionables like malware distribution sources. Naturally, appropriate oversight measures must be in place to prevent abuses (appropriate not implying a secretive, ad hoc, rubber stamping court).