My opinion on just about every HM has changed.
Matt: initially I liked him, thought he was an honest, good guy. Now his (almost sexist?) egotistical nature is just ticking me off. He's just really arrogant.
Ed: He's playing it safe and I don't like it. Initially like nearly everyone else I was in love with 'prince charming' because he honestly seemed charming, but as of yet he's shown no wit, no humour, no nothing really. And what the hell does he have against Mikkayla? Even Matt let up on her during yesterday's nominations (4th), which is big considering he hates 'bossy' people.
Caleb: He's always been a bit of a meh HM for me.
Tim: full 180, initially I hated his voice, his seemingly pointless antics, but he grew on me within the first week and now I'm rooting for him over everyone else.
Mikkayla: I used to root for her, and I still like her, but she's not one of my favourites anymore. Stahp picking on Ben, Mikky!
Ben: I found him a little contrived to begin with, and I still do suspect him sometimes, but either way he's shown nothing but kindness, good humour and a good heart so far so I like him.
Heidi: been a meh HM for me from the start. My respect for her has diminished after her use of the 'insider' superpower. I was kind of hoping she was secretly a tactical genius.
Jade: initially liked her a lot, now I don't like her as much. Still like her though.
The sisters: Turning point for me was when they accepted Big Bro's fake tan challenge. I didn't expect those two to do it without complaint; I think most of the other girls in the house would have refused after two or three, but they kept going.
Tahan: I liked her, then I disliked her, now I like her again. She's just really honest.
Tully: Liked her to begin with, find her really self-absorbed and petty now.
Drew: no change in opinion, he's still awesome. A+ for Drew-y. His recent broship with Tim is just icing on top of the cake.