I’ve ridden both, and owned the Nomad. I could ride the Nomad faster, mainly because I don’t really like the soggy feeling of FSR suspension.
They are IMO both too small though. Not such an issue with SC as you can size up, but if you’re over 6ft YT have no XL, and the bike isn’t long, or roomy in the reach department by current standards.
There are better bikes than both out the I think. Plenty of people love them though. YT sounds great but it’s always a concern to me if it turned up and I hated how it rode. Doesn’t matter how cheap it is then…