I just wanted to throw the AU/NZ plug into the mix since nobody is really talking about it. I don't have enough knowledge about this kind of thing to really have a take on it, but I'm interested to get an international perspective.
Hah. Yeah, I definitely prefer the size over UK plugs. It feels wrong to me to have a 230v wall voltage without a blanket requirement for earthing, but as I said, I don't know enough about it. I'm quite open to being wrong about that.
It's better than the US one, but it's just worse compared to the European ones. It's hard to get them aligned in the dark/behind furniture, but at least it won't fall out by itself.