Spoiler Level: High
This show has just gotten better and better. They've even started handling Aquaman right! Okay, they still call him A.C., but he's married to Mera, he's lost the surfer dude attitude ("Did Mera teach you that new vocabulary?" I love it!), and although they didn't get into his origins in detail he said Mera has shown him his true origins-- which leaves things wide open for Atlantis. And Mera kept using his Atlantean name, Orin! Fan-freakin'-tastic.
I also loved that he seemed to be out for protecting the seas, and was somewhat disappointed to learn that the oil rig he blew up wasn't an oil rig after all but a super-hero holding cell. Oh well.
And Michael Hogan isn't just typecast as a somewhat off-the-rails colonel, he's Slade Wilson. Didn't see that one coming. He's got the eyepatch by the end and there's lots of x-rays of his skull... I wonder if his brain's been enhanced? I don't know if they'll have time to have him come back as Deathstroke before the season ends, but I hope they get to. It would be a shame to have such a wonderful set-up and not get to use it. And it would be even better if Cyborg gets to be in the episode where he returns! Maybe it could end with Cyborg taking some teen heroes under his wing and starting his own team...
The bits with Lois becoming part of the team were also very, very welcome. It didn't even occur to me that Lois and Tess weren't aware that each other were both in on Clark's abilities. Once again, this season takes the annoying "we're having a conversation where we both can't admit to what we know" Smallville standard and turns it into something amusing. This final season has been a great pay-off for sitting through this show for the past 10 years.