To get the Len Wein issues in SHOWCASE PRESENTS, you would have to get volumes 5 and 6. I have volume 5, but I never knew there was a volume 6. Now that I look for it online, there don't seem to be any copies available--and if they were they probably would be priced a lot higher.
Personally, I hate the colouring in the new reprint books, so I prefer the black & white editions. And I'm still wondering about issue 103, if anyone is interested in answering my question.
Volume 2 of the OMNIBUS reprints almost all of the Steve Englehart run, just shy of two issues! They should have collected Englehart's whole run in a trade paperback a long time ago.
How often am I going to get a question like this that I can answer? I’d venture never, so thanks. I have omnibus volumes 1 and 2. I just checked and the Marvel characters are all decked out as in the original.
I loved this one as a kid. I was fascinated by The Phantom Stranger and #103 was a great issue for him.
The JLA returned to Rutland in #145 with the Phantom Stranger in a creepy story that's one of my favorites.
Apparently, though I'm not sure how COVID has affected it.
The way I see it, Englehart gave a, then, Marvel vibe to the book, while Wein upped the game in the more traditional DC style. I have most of Wein's run, and all of Englehart's. Wein's team-ups wth the JSA are some of the most memorable ever. I think he started the trend of always having someone else join the team-ups with the League and the JSA. He gave us the 7Soldiers of Victory and the Freedom Fighters. Later team-ups included the Shazam Family, the LSH, DC's non super-hero heroes, the New Gods, the All-Star Squadron and others.
Peace
There is a TPB, actually a series of trades, called Crisis on Multiple Earths. Volume 3 has Len Wein’s Team Up stories with the 7 Soldiers, the Freedom Fighters, and of course the JSA. It also features the Sandy and Sandman story. The paper is newsprint so the colors look more like the old comics. The covers for the trades are by Alex Ross, George Perez, Jerry Ordway, and Matt Wagner.
So, it looks like the ones not collected were:* 1983's #219-220, with the Black Canary retcon into a mother and daughter.
That one was basically negated to some degree by CoIE and really has some creepy/undesirable choices
* 1984's #231-232, the "Family Crisis" story by Kurt Busiek which was somewhat . . . strange
* 1985's #244, a CoIE crossover that seemed more like an encounter between Infinity Inc. and Justice League Detroit as opposed to a classic JLA/JSA team-up.