Pyramid: While the 70s versions made for great television, the 80s editions were absolute peak. Between Dick Clark overseeing the proceedings, smooth gameplay under tight rules, and the Winner’s Circle (especially during the $100,000 tournaments) being tension that could be cut with a knife, this was a Bob Stewart gem.
Will not argue this one bit; 80s "Pyramid" was just a masterclass in game show production bar none. With that said, I could pigeonhole the Strahan run and say that the earlier, the better......the show seemed to lose a bit by heading back west.
As for my takes----(and I'm sure I'd come up with more over time)
SOTC: I'd say mid-80s, as exhibited by some of the syndie run. I'll let others argue the "Shopping Round vs. Winners Board" subject. The WBMG period just seemed like the show was running out of gas.
Supermarket Sweep: ~1992-93.
Double Dare: I've personally felt 88-89 was peak; the show had proven itself by then, I'm sure production budgets had improved, but they were still largely true to their roots. I guess I just didn't care when they went full-on "Family" in 1990 or so.
STYD: Probably a couple seasons in. Didn't care when Dee started doing more of the characters, and the transition to the discount big-box motif just was too much of a change
WOF: I'd say 1989-~1993 or so (the TV City years), but that might just be childhood nostalgia talking (peak "li'l game show nerd" period for me; and yes, I was a little bit of a Wheel Watcher then). But Pat and Vanna were still on top, Charlie O. was back at the announce mic (sorry, Jack Clark), and they had the best incarnation of "Changing Keys" in the show's history. I have, however, seen several of Ryan's shows (syndie and ABC primetime), and I feel he's been a breath of fresh air for the show.
LMAD: Must be honest, I prefer the 84-86 run over any other version, but there was a definite decline in production quality, and *perhaps* prize budget, with the 85-86 shows. A lot of the early-mid 70s run (e.g. what we've all seen in the cable reruns) could be up there too. Can't say I've had much sample of Wayne's run, but he's gotta be doing something right to have had the run he's had.
J!: For being such a fan these days, I *should* have an opinion here......with that said, I personally wouldn't mind seeing some of the late-80s to mid-90s shows for comparison purposes. I do like how the show is at the moment with Ken, but they could cut back on the whatever-many tournaments.