same thing.
Payne avoided Jiraya's attacks (so far) by having three pairs of eyes watching the same spot, two bodies cover for the third one.
so if Jiraya is able to seperate each body attention to a a different occurence, he can (theortically) land a hit on one of them. the shadow clones are a way to divert attention, since most enemies (actually, no one has a fail-proof system) can't tell the diffrence between the clones and the original.

So far, we haven't seen any application of the Godmodeyes. so you can't say it's better or worse than the Byakougan.