Unlike certain people my age who by far had a bigger passion for Double Dare, I was equally into Concentration, often playing a matchmaking game with my mother on Saturday Nights. That said, while Double Dare may be more visially appealing and of course you can't deny the excitement of the stunt challenges, Concentration feels just a fun due to matchmaking, the various prizes/bonus cards that appear, the rebuses in the puzzle, and has themes nearly as good as Double Dare's. It allows you to think better by focusing on both the prizes and the puzzle, and has LFaT value through certain symbols that are reused. Plus, it never jumped the shark in its history.
Concentration 7, Double Dare 4
GUTS is still a good show to watch and has a similar variety of challenges like Double Dare provides, but as an adult I'd rather watch an American Gladiators marathon (even Gladiators 2000), even if GUTS had a better variety. Family Feud meanwhile is frequently listed as a Top 5 game show of all time (it was #3 on GSN's Top shows list) and despite its various hosts and going in the direction of how Match Game went in the '70s, its still an enjoyable "Bar Game" with the newer version, plus the fact that Fast Money is still the same good bonus game.
Family Feud 8, GUTS 3