Eustaquio comes with a more pedigree than Kaye, as he came up through the Portuguese leagues as opposed to USL, as well as a big transfer, but I'm not so sure he's better. He very well could be, but I have to see him play.
Kaye has impressed me every time he's played. I remember when OZ included him in the Men's team early and people (including me) were like who the hell is this guy? But OZ was definitely on to something as Kaye has just kept progressing, and is now an everyday starter on a good MLS side.
I think the Atiba comparisons are valid. His football IQ seems very high, and he keeps on progressing. He's versitile like Atiba as well. Will be interesting to see if he tries Europe out in the future. He should just fulfill his Atiba legacy and go to FCK or PSV