The Enclave and The Brotherhood. Two warring sides with some badas* power armor. They both have different views of the wasteland and how we can rebuild the great Capital Wasteland. Do you think the Enclaves FEV virus is a great or terrible thing? What about the Brotherhood? What do you think of there impact on the wastes. Im sure we will all be happy to here your opinions, so start Discussing.
The real questions is: Wwhich of the factions have the ability to build a civilization?
The short answer is: Neither. Allow me to elaborate a bit.
The Brotherhood of Steel is an isolationist group of technology hoarders. They try to gather and conserve technology, but without building an infrastructure of a certain size they are unlikely to be able to maintain the old technology, much less able to make new technology. The strategy of Lyon in DC underscores the basic impotence of the Brotherhood: While they may be able to clear out the super mutants from DC, who is going to make sure the super mutants stay away for good? They can only do that if someone is ready to move in. And who is that going to be? This is why the Brotherhood of Steel are going to fail: They are hoarders, not builders.
The Enclave is the remnants of the US government that allowed the nuclear war to happen. Furthermore, it has had a score of crazy leaders, trying to commit genocide against the sentient beings of the Wasteland - including the human race itself. Everything we have seen of the Enclave suggests that its strategy is to wipe out everything - again - and build a dictatorship under the leadership of the "elected" President. And even if they succeed in exterminating everyone except themselves ... what are they going to eat? Most plants and animals are mutated as well. And even if they solve that problem, how are they going to make sure that no one moves in while they repopulate the planet? Their numbers can't be big.
For both factions, the leadership is part of the problem, not the solution. If either group is going to play a role in making the wasteland a better place, a revolution from the rank and file members is needed. Given the crazy plans of the Enclave, I would say that it is the Enclave that needs a revolution the most. But both factions need to change, to adapt to the post-nuclear wasteland.