I wasn't remotely suggesting Katy D wasn't an underdog, of course she is. I said nothing about her. What I did was predict 3 and said my 3 was Jo, Katie B. And then, because most folks' next favoured seemed to be Heather or Gabi, I just said my 3rd was not necessarily one of them, because I made each of them an underdog.
I made no comment on the chances of the others, but yes to me all the rest were/are underdogs to various degrees. But I thought after Jo and Katie B one ( without being at all sure who ) would beat the odds. So we would get 3 through.
With Katie S winning, as Julia said it was looking good for precisely that. And hopefully Katie B can still battle through this third set for the win.