I think Mack is okay. I'm under the belief that once Skye and Raina made it inside the main chamber, the temple un-possessed him. Of course, I just want Mack to live, so this may be wishful thinking. But yeah, it sucks about Tripp. He and Simmons had something going, but that totally got dropped for no apparent reason.

I like her a lot better this season than last season, but I still regard screentime with Skye as inferior to screentime with just about any of the other characters on the side of good on the show.

That's pretty much my thoughts on Skye, too. Less annoying this season, but I still don't care that much about her. She might become more interesting now that she's an Inhuman or whatever she turns out to be, but she doesn't need to be the second main character after Coulson. It's an ensemble cast, people; give the other characters some meaty stuff, too.

Watch Agent Carter as soon as possible. It's so good. I love Peggy so much.