Opinion: Negan's storyline will be more brutal than The Governors.
It is starting to look like it already. But I recon the certain members of the group are a lot stronger now and have the ability to fight through whatever is thrown at them, thus making less likely to be captured again or fall into traps.
What I want to see is Rick travelling to all the nearby settlements and rallying everyone under one banner and taking the fight to Negan.
Although seeing another story arc that could be as brutal as The Governors entices me quite a bit as well.