There was, of course, the patented "foreshadowing" that TAR loves, when it had Mike talking early on in the episode how they want to go far, try their best, but never forget that they are having fun. That pretty much sealed the deal for me. I'm still sad about it though. I think if they gave a "fan favorite" award for this year, Mike and Mel would have it locked up.
I really don't mind any of the teams that are left at this point. I find that refreshing, actually. I know some have to have someone to "love to hate," but not me. I like that I at least like all of the teams left.