Playing as a pyromancer, so a mix of brute force and distance/range.
TBH difficulty is about the same between the two, I wouldn't have got anywhere near where I am in the game without the help of phantoms / other players who saved my bacon especially at the point where shear frustration was becoming a massive barrier.
There are FAR more entire hidden areas in the game though compared to bloodborne and thats ignoring the DLC.
From the 'Smouldering Lake', the 'Archdragon Peak', the 'Old Wolf of Farron' area with its boss and another hidden areas, 'the Consumed King's Gardens' ...
And i know I still have missed loads.
There are a bunch of hidden/optional areas in Bloodborne as well. Did you explore the upper cathedral ward and its two bosses? Castle Cainhurst? The upper level of the clinic (starting area)? Nightmare Frontier?