ok i checked everything out
both wattages are RMS but the logitech's subwoofer has a higher RMS wattage than the Creative's but the Creative has more RMS watts per channel than the logitechs
the creative has a SNR of 99dB
the logitech has a SNR >75dB (thats wut it ses on the site)
and they both have a few reviews saying that the amps blow but i guess thats unavoidable
since im looking for computer speakers/ home entertainment speakers i think i'll go with the Creative's because the sound quality is better and they hav 5.1
thanks for helping me choose