PERSONAL OPINION AHOY!
I find Arin to be an insufferable toolbag and it's only gotten worse over time. He's a really sore loser and just as lousy of a winner. I can't stand any of the vs. episodes in particular because Danny's being a cool guy and Arin's over here like "OHHH YEAH TEN POINTS".
It also really, really bugs me that he's so wildly incompetent and pays no attention to the game he's playing or his performance therein, he's more interested in talking-- which I can understand, he wants to keep things interesting-- but I would love if someone who
makes money off of let's plays actually bothered to not suck once in a while.
All this said, I do watch their videos when I need some background noise. I love hearing Danny's stories and I can't wait for his new album to come out. I also rather enjoy Steam Train whenever Danny shows up (Which is rare these days, but oh well). I also like Barry and Ross.
Agreed that Suzy is really terminally unfunny. She sort of strikes me as the kind of person I wouldn't like at all if I knew her in person.
I think she and Arin are perfect for each other though, they're both fuck-awful at games and prefer to blame the games themselves when they're the ones messing up.

I enjoyed Jon era greatly, but I also really enjoy Jontron and the direction his videos have taken. I think his comedy is getting really, really good and I'm glad they split up regardless of the circumstances.