The characteristic frequency of a network is of the form w_0 = 1/sqrt(L*C), and characteristic impedance Zo = sqrt(L/C). Exact element values vary above or below these, according to the filter function designed, and how the elements are interconnected; but the overall network will average (that is, geometric average) to these values.
Assuming the designs are correct, and appropriate for whatever impedance system they're embedded within, frequency involves rescaling everything proportionally. As frequency goes down, inductance and capacitance go up.
Impedance matching is paramount. None of the three listed, indicate what impedance they are designed for, so they aren't very useful. You don't mention what impedance you're designing for either, so I'm afraid we cannot draw any meaningful conclusions.
The second one, for example, seems to be designed for around 280Ω. But this depends on the desired Q, the peaking in the transition band, and could be meant for other values.
Tim