I was meant to do this in my op last night but I was too tired and I couldn't be bothered
My four favourites at the moment are Leah, Francesca, Myles and Rebecca.
I think yesterday showed Leah to be a bit over the top with Zee but as it was Zee I think he kind of deserved it. However, I worry that she might go over the top again when she is the one in the wrong and it could cost her. However she is a very strong candidate and has provided great pitches and ideas. And every candidate has to have an episode where they are shown a lot.
I think Myles seems to go a bit unnoticed on this forum, but I think that he has proven to have a lot of business knowledge a well as common sense which some of the candidates are lacking. He was also a good PM the last task.
Although we haven't seen much yet of Francesca or Rebecca I think that they have been good team players and the only mistake they seem to have made so far is the finances in week 2 (which nearly got one of them fired). However I think that I can only tell whether I really like them when they have to become PM.
I also like Jason and Alex (sometimes) as they provide entertainment and they do actually come up with good ideas and have been good at negotiating.
As others have said Luisa will probably be the one that goes on "the journey".
I quite like Jordan as I think he has been a good team player and I doubt that he would've been back in the bottom three if he lost any of the tasks (except for when he was PM of course). So I think he is one to look out for. however his BR celebrating annoys me.
So in conclusion to this essay

I'm probably going to vote for Myles as my favourite this week.

But it was close between him and Leah but she has enough votes already