I use 96KHz, over XLR. The reason for this is lower round-trip latency, for use with DAW plugins, and monitoring in real-time.
If I set my interface and DAW at 44.1KHz, with 128 samples, I get an overall latency of 10-12ms. That's the time it takes for the guitar signal to enter the interface, process through the DAW/plugins, and come back out the monitors.
When I set my interface and DAW to 96KHz, I get an overall latency of 3.65ms. It sounds great to my ears, and it feels correct, when monitoring in real-time.
If you haven't tried it, give it a shot, it may surprise some of the doubters out there.
I was curious when I read your reply, because I also go to DAW through XLR and I set my projects to 44.1KHz and I get 10-12 ms latency.
But I always thought that when you increase the sample rate the more latency you have. Well, to my surprise when I set the sample rate to 96KHz the latency went down to 6 ms and I don't use plugins and monitoring, just plain Kemper signal.
Care to explain why it happens? Are the drivers optimised for 96KHz sampling rate?