I've never shot a Sig 522. I HAVE, however, owned a Nordic Ruger 10/22 that I've had over 3 years now. That thing is a tackdriver inside 100 yrds. I mean, I pick off ground hogs with it like crazy. I shoot them on the move, I shoot them at range. They fear that thing.
So... you can say the Sig 522 *WILL BE* better, its certainly possible, and it certainly LOOKS cool. I'll probably buy one. But you cannot say it *IS* better, because you've never shot one, I've never shot one, and no one has shot one for three years.