Can concur on the shushness and sublimation.

However, PATH is meandering near the border of MTA's hellish confines and looks drunk enough to stumble in. Couple that with the incessant development (there are 4 towers in constructions near Paulus hook) and already stressed PATH infra and you can guess what can happen next.

On the whole, JC is better than BK for a myriad of reasons.

PATH's infrastructure is mechanically sound and improving. I would not be concerned about it following in the MTA's tracks in the signal delay/equipment failure sense.

Overcrowding is certainly an issue and while I know there are some capacity improvements in progress (CBTC signaling, more cars), I have never seen a clear timeline from the PA as to when more capacity will actually happen.