Adcom or Creek...which passive sounds best?

I have a question about inexpensive passive preamps for those who have tried them both:
Which is sonically superior, the passive section on the Adcom GFP-750 or the Creek OBH 22 passive preamp?
In what all ways is your choice between the two sonically superior?
Thanks for your replies.
i had the modd squad passive here one time and ,after i found short interconnects to run it with it was a buddy that has the adcom and hates it in passive.grab a modd squad there real cheap on here and ebay ,they did make a passive /active one to and it was suppose to be good also ,think it was there deluxe model..go to lot of reading om these type pre amps
I have the Adcom GFP-750 running a GFA-5802. I recabled the system and went all balanced made a world of difference. Bought a Krell 400 integrated and returned it in a week the Adcom stuff balanced blew it away. Other stuff: Sonic Frontiers SFCD-1 (also running balanced) driving Acoustic Research AR9's(by teledyne). Could be the whole system just works- I love it.