Hmmm.....Tigger's never itched from Royal Canin. Prior to Royal Canin.... He was brought up on IAMS by his breeder(supposedly) with Ceaser's mixed in, then switched over to Nutro Ultra Puppy (didn't think he was really touching it), then Nutro Natural Choice Lamb and Rice Puppy (But I thought that it was drying out his skin and also thought he wasn't eating as much of it as he should have. later found out it may have been due to too much sugar in his treats.) But since being on RC he hasn't had any of those problems. His skin is clearing up nicely, his coat's beautiful, and he eats most of it. Plus we only go through a three pound bag once a month. if that...
Out of the two I would go with Innova, or Nutro Natural Choice. Best of luck.