As I said the other day, I have two games that have stuck with me since around the time I started gaming regularly with the same crowd (Nick, Pete, and Steve) and these are Nick's Traveller and Steve's Villains & Vigilantes.
The thing that I loved about both these campaigns - that demonstrated to me why roleplaying games will always be better than board games and computer games - is the freedom we were afforded as players.
Sure, we had adventures/missions to pursue, but both Steve and Nick were presenting us with cinematic scope to be larger-than-life adventurers.
They were enacting the "rule of cool" before it even had a name. If we wanted to try something, and could justify it (and when it comes to comic book superheroes that gives you a lot of leeway), then we were allowed to attempt it.
Then it was down to the dice.
Of course, nostalgia and rose-tinted glasses both play a part in these recollections, but honestly I don't think that matters as it generates a mood at the table that I seek to continually emulate, even if it never really happened quite as I recall in the first place.
- By the way, today is the fourteenth anniversary of the first gathering of The Tuesday Knights.