I've recently read Blackhawks (new 52), it was pretty decent. I like the new design for Lady Blackhawk and the rest of the squad.

I think they are one of the most interesting "normal" teams in DC.

I agree. I'm disappointed they haven't been seen in years because it was a neat idea. I guess A.R.G.U.S. has kind of taken over the role their were intended to fill though.

I have never dug dig, but Ace was like my favourite character from The New Frontier so maybe I should indulge in them a bit. Dig them being part of the Watchtower. What are some suggestions for good COTU runs??

Unrelated but New 52 had a bunch of sick ''regular people'' teams. I wish there was a Janus Directive-esque collab between Suicide Squad, Blackhawks, Stormwatch and Team 7 of some sort, think that'd have been sick

I'm not sure there are any great runs for them outside their own series. Volume 2 was interesting but I think the events have been retconned because they depict older versions of the team and even though they appeared elsewhere those older appearances, they didn't last long. They also had a run in Justice Society Vol 3 52-54 that was intriguing but seemed to be cut off prematurely for the New 52. I also liked their appearances in Brave and the Bold.

Some good Challengers runs:

First, there's the classic Kirby run: Showcase #6-7, 11-12; CotU v1 #1-8 (1957-59). Fast-paced wonder and craziness. Wally Wood inks four beautiful issues.

Much of the early sixties stuff runs together at two and three stories per issue, but there are some standouts - a crossover with the Doom Patrol in #48, Red Ryan dies in #55 and returns in #60, and the Legion of the Weird debut in #62.

The end of the Silver Age run: CotU v1 #64-74 (1968-70) Bob Kanigher replaces Arnold Drake as writer, and from there until it goes reprint, v1 has a distinctly creepier tone. Corinna Stark debuts.

The Bronze Age revival: Super-Team Family #8-10 & CotU v1 #81-87 (1977-78): A little heavy on guest stars toward the end, but fun. Gerry Conway and early Keith Giffen.

CotU v2 #1-8 (1991): Early Loeb/Sale work is a '90s deconstruction. Essential reading, though not a personal favorite. As Kyle says, no longer canon.

CotU v3 #1-18 (1997-8): Steven Grant's Weirdoverse team is a worthy successor. The originals appear in #7-9 and in flashback in #16.

Superboy v4 #63-64 (1999): Guest appearance in the "Hyper-Tension" arc.

Correction, since I can’t edit a 3-day old post: Challenger Kenn Kawa is apparently killed in The Question: All Along the Watchtower 1.

Spoiler

He's revealed to have survived in issue #2.

Somehow I thought he’d pull through.

The Sea Devils were a part of Aquaman's comic in the 90's. They were Interesting.

I read my cousins old Challengers of the Unknown back when I was younger. Late 70's to early 80's. They teamed up with Swamp Thing in a few of them.

I have been fan from then on. I did read the relaunch a few years back. It was Interesting, but I missed the OG lineup. They were my favorites.