I follow both Gintama and Bleach, never watched YuYu Hakusho, and I can tell that Bleach is more shit than Gintama. Kubo Tite takes his series too seriously, makes plot holes and annoying lead characters. The Aizen thing was awesome, but he got overrated because of that and people start saying he's a genius mangaka, when in a recent interview he admits that he basically envisage cool scenes and write around it, in other words pull stuffs out of his ass. Also, his perspective sucks. But he draws sexy faces and cool, wearable clothing design.
Bleach anime suffers from Pierrot incompetence. Its fight coreography could have been better, and its filler storytelling is utter shit. Watch a few episodes of Bleach and Gintama and it's obvious Bleach has a lot more off-model frames. In Gintama, the filler padding is so seamless you'd think Sorachi himself write it. Plus the Gintama anime writers know how to refrain from fucking canon.
tl;dr. Gintama > Bleach except the women