I'd say that if you are comparing watts vs. uF, then you probably need to consider damping, or DF.
However if there are 2 amps with the same RMS value but with different uF, then all other things being equal, the one with more uF will have higher dynamic peaks and lower Power supply impedance. However all other things are not constant, therefore listen to the amps before buying.
Lastly, given similar sounding amps, try and get the one with more power output.. again consider all variables.
However if there are 2 amps with the same RMS value but with different uF, then all other things being equal, the one with more uF will have higher dynamic peaks and lower Power supply impedance. However all other things are not constant, therefore listen to the amps before buying.
Lastly, given similar sounding amps, try and get the one with more power output.. again consider all variables.