Couple of things:
1) Don't buy into the FUD some like to spread about Sense - it is far and away the best OEM Android implementation out there. It had smooth transitions and such before ICS brought in hardware acceleration, really nice Browser optimizations and even real ActiveSync baked in. I would also note that ICS is STILL having some stutter issues even with the graphics being hardware accelerated - I do expect however it will be fixed.
2) The Rezound is worlds over the GN in build quality. It is WELL built and feels that way. The GN is a victim of Samsung's fixation with plastic smartphones. It makes the phone lighter but also makes it feel cheap and flimsy. Samsung really needs to go to aluminum or another metal or carbonate casing.