I have used AB for years and prefer it over GPU Tweak for the simple fact of OSD.
However, AB and other monitoring apps is now conflicting with the last couple of Nvidia drivers when stress testing and causing BSOD, well documented at the Geforce forums and Reddit. More of Nvidia's fault really but it's there.
GPU Tweak Beta also now has OSD which is what i'm looking forward to, as i HAVE to have it installed as i have two Noctua's connected to the Strix 1080Ti. It'd be good tp get rid of AB / Rivatuner for good.