I think Uther would be a total love-to-hate-him character IF he hadn't been Giles in a former life. It's more upsetting to see him being dickish because he's GILES and he's supposed to be sort of nerdy and really quite lovely overall.
I'm working on it, though.
The Morgana/Uther dynamic is amazing, by the way. I definitely want to see that explored more next season.