I'd sooner replay Fallout 1 over every other Black Isle game + every Kickstarter era game. It's not perfect, but it kicks every kind of ass.
It plays like a tech demo for what would be Fallout 2. A proof of concept. Half of the skills are essentially unimplemented, half of the half that are implemented are weapon skills.
Fallout 2, Olympus 2207, Nevada and Sonora surpass it in every single way. It's unfair to even compare, it didn't get enough time to cook.
Which 'half' is not implemented? I vividly remember, that all of the skills except traps and possibly throwing were somewhat useful in the first game (but not all character attributes - charisma was useless) - and that in the second game barter became useless. What was so spectacular about Fallout 2? Fighting mutants casually strolling around a ship inhabited by humans? Convincing hardened war criminals from the Enclave that committing genocide is morally questionable? Or maybe the idea of playing ~50 hours game with a lackluster combat and an uneven exploration?
I don't know any game that gave me experience similar to the first Fallout - short and sweet, not text-heavy (unlike Age of Decadence), allowing me to avoid half of the content if I wanted to, with only three dungeons - but all of them memorable. The Glow is the only location with radiation in the game - where it is possible to stay too long, then die on the way back from radiation syndrome; one of the few places giving some sort of story, and the AI. The cathedral was a journey into madness, and in the Mariposa base, I was able to penetrate it either from the bottom (after submitting to the supermutant in Necropolis) or the top - I don't think I remember any game, that gave me that sort of choice - and it made great difference depending on how I want to play the game (for example, it was much easier to play a pacifist going from the bottom).
I remember myriads locations in Fallout 2, that were completely uninteresting - rat caves, raiders' cave, wanamingo mine, Redding tunnels - all of them consisting of multiple levels. Why add those time sinks, if the combat is trash? And why bother replaying the game, if so much of the content is mediocre at best?