I have to agree with Dennis here.
Lightroom and Photoshop are not able to be directly compared, they are, however, complementary in nature.
This argument is a bit like trying to seriously compare an Audi A4 with a Mack truck - they are both vehicles that drive on a road and in broad terms can be used for transportation but no editor of a motoring magazine would try to compare them directly - the result would be ludicrous.
Fanboys may rubbish one or the other application, but, in reality, most of use both applications, but in very different ways.
Ps fanboys probably don't realise that Lr is actually a Digital Asset Management Application that has several other features including RAW conversion, printing, and other useful features while Ps is actually an exceptionally powerful pixel editor with no robust DAM features and a peculiarly quixotic printing ability that Lr leaves for dust.
As a disclaimer nothing above attempts to be a full explanation or description of either application but rather just a summary statement.