I read Secret Wars back when it came out in 1985 and the original Crisis too (I still read DC back then). I suspect neither would stand up well now.
Since I got back into reading Marvel a few years ago I've read most of the recent-ish events. Secret Invasion didn't appeal, and neither did Infinity War, Seige, Avengers vs X Men or House Of M.
Civil War was good, as was, surprisingly. Secret Wars (2015). Civil War II was diminishing returns, Infinity and Axis weren't exactly great and neither was War Of The Realms.
Secret Empire I don't think was that good, but I did enjoy it.
Iron Man 2020 (which is listed as an "event") was a steaming pile of garbage, caught fire and extinguished with a bucket of piss.
I'm not liking X Of Swords and King In Black doesn't exactly appeal.
I'm burned out on them, but...what are your ratings of them ?
P.S. The first Spiderverse crossover event was damned good ! The second inevitably less so.