The problem I'm having here is that videogame franchises seem uniquely disposed to having really shit instalments.
Like, Tomb Raider - the first two games are among my favourites of all time, but if I say it's one of the "greatest gaming series", I'm including so much awful shit, including all of Crystal Dynamics' disasters and especially the awful 2013 reboot ones. Shit!
Fallout - Fallout is outstanding, Fo2 is a largely-positive mixed bag, NV is great, Tactics is what it is, I'll very lukewarmly defend some parts of Fo3, but then... BoS? Fo4? Fo76? Fucking Fallout Shelter? There's more bad than good in the Fallout series at this point.
Doom as well - first one is great, second one is less great, Final Doom is very mixed, Doom 3 is a bit shit (sorry, apologists!), nuDooM is a complete bore.
Pretty much no matter what series you pick, there's always some bullshit lurking in the roster of games, sabotaging everything.