Sorry, I can't take you seriously if I read something like this. I'd say that both BG1 and BG2 had a pretty weak story, so saying that BG1 was slightly better due to a better pacing is justified. I'm totally okay with that. But saying that BG1 had better quests... really? I mean; really? Name me just one quest that wasn't just "go there, beat **** up" in BG1? Certainly not clearing the endless levels of Nashkel Mines. Or all the pointless dungeons filled with hordes of copy & paste encounters.
I can name you dozens of memorable quests in BG2:
The Unseeing Eye, the De'Arnise Keep, the Planar Sphere, Getting the dragon eggs in Ust Natha, the Skinner of the Bridge district, the Umar Hills deaths, etc.
Literally every zone of BG2 had at least one memorable, multi-stage optional quest that you will definitely remember in almost every single detail. In comparison, I can't even remember almost any of the sidequests in BG1. Like literally, I played BG1 at least 5 times now and I still struggle remembering the quests.
QFT.
Anyone who says that BG1 had better quests or better dungeons than BG2 or PoE is clearly not talking about BG1 the actually existing game, but rather about BG1 the sugarcoated memory of how playing a fantasy cRPG for the first time as a teenager made them feel (when it had no prior expectations to measure up to).
While I agree with the "first rpg experience part", BG1 DID have some nice ideas, like the garden of stone statues in the basilisk area and having to figure out by yourself to cast "stone to flesh" on them without any prior hint.