My Zach Myers SE in my Sig came with 9's. I thought they were a bit like spaghetti and had to do crazy long distance bends compared to normal. Switched to Paradigm 10's and though I like it, I started missing some of that loose freedom and ease of legato of the 9's. Paradigms have lasted quite a while now, I might try and compromise with 9.5's next time. Probably D'addario since Ernie Ball doesn't do half sizes. I do think 9's were just a tad loose, but not by much.
For me NYXL's last twice as long and get in tune almost straight away with minimum stretching. I find the thinnest gauges are a bit stiffer and when they get old, can feel a bit like cheesewire and a bit harder on the fingers. They have a bit more attack and I think an upper mid boost with 9's and 9.5's didn't notice as much difference with 10's. I do like them and usually get them if I fancy using D'addarios.