after thinking about this for a bit. the best moments in S1 were "the cell" (the original, not the cringe one they tried to halfass later) , that day where they tried to bring a hooker to get fatty laid and a bunch of e-celebs visited (lots of funny moments, very eventfull day), the entire letty and frank arc and the "you are a bunch of niggers" fake ending.
the best moments of S2 were the first 5 days (probally the strongest and most consistent streak so far, pure kino from start to finish), fatty santa "bombing" the fish on christmas eve (very short, but was kino while it lasted) , the night where frank arrived and they did the drunk bunk making challenge (some of the funniest moments in the show overall) and the whole babysitting challenge night.
Overall S1 had the best and most memorable contestants and was fairly consistent in terms of quality, but it was also quite boring and dull.
meanwhile S2 had the highest highs and some of the craziest moments ever but was a very inconsistent experience and it was very obvious when they ran out of ideas and had no idea what the fuck to do, and it got really dark and grim at some stretches wich isn't what i expect from a show like this, the whole idea to force relationships and psychological shit was bizarre and i have no idea why they thought that was a good idea, S1 had none of that shit.
Also one aspect that is in my opinion very underrated is how fucking good the living room in S2 was, as iconic as the kitchen was in S1 , the decoration and camera placement in the living room in season 2 was unbelievable, whoever did that deserves a prize.