The advantage of the capacitor input filter over the choke input filter is:

In a power supply filter circuit, a capacitor-input filter features a capacitor placed directly after the rectifier. When AC is applied, this input capacitor charges all the way up to the peak value of the AC voltage waveform, which is approximately 1.414 times the RMS voltage. This results in a noticeably higher terminal output voltage compared to a choke-input filter. A choke-input filter opposes the initial surge of current and averages out the voltage, resulting in a significantly lower output that is closer to the average voltage (about 0.9 times the RMS value) rather than the peak. While choke-input filters are superior for voltage regulation and keeping peak rectifier currents low, the primary advantage of choosing a capacitor-input filter is to maximize the DC output voltage for a given AC input transformer.