I would award it The Best UI for being so usable it spread like a weed. I trained juniors fresh out of college who self-learned perfect web UIs in Bootstrap. Bu

I would award it The Best UI for being so usable it spread like a weed. I trained juniors fresh out of college who self-learned perfect web UIs in Bootstrap. But when they use custom design (based on Bootstrap) I discover a handful of bugs in minutes. Some design changes seem fine to everybody else but causes your burdens to multiply.