It's very sad, seems more like a thing about numbers and "I have a longer penis than you".
First thing, they didn't create Baldur's Gate, they were just a side team. They did create Planescape: Torment, which has a great written part (script, dialogues etc.) but a terrible and bugged gameplay, Neverwinter Nights 2 (TWO, not the first), which is a fail on mostly every aspect of the game itself: avaricious in terms of PC resources, badly programmed, outdated graphics e poor models; the first campaign is plain and resembles what you call a "Bethesda branded storytelling", the second campaign is praised for the written part only (same) because the programmed game is puking matter.
They also created Kotor 2, which was unfinished (maybe not their fault) and buggy (totally their fault, it's their trademark), surely inferior to the first Kotor made by Bioware.
Icewind Dale has nearly zero story and dialogues, so I wouldn't choose it to make comparisons.
Obsidian has a fame for bugs and sure for few (not many) good games they have made, when they aren't so horrible on the gameplay part. This means Fallout 1 and 2 are good games, PS:T is mediocre (5/10) due to its bad programming and lack of effort put in the gameplay part, Kotor 2 is unfinished stuff, MotB does have a good written campaign but runs on NWN2 which is really bad, and finally Icewind Dale is a good game as a hack&slash, not for story or dialogues.
Storyline
To sum the image, but being honest, you should say: FNV has more than few kinds of endings, all obtainable (if you have the patience) just siding by words with the local tough representative, and spending a lot of hours travelling around in every dump place you can find. This is not inventive, it is just adding more beef to the cooking grill instead of making it more tasty.
Factions
Honest talking: FNV has a lot of factions, that's undeniable, although you can't join all of them (that would be a little too much to render with the endings, it'd become a mess), and they haven't a real charm as the factions in Planescape (the rpg game) have. I don't say they aren't good, but they are a bit overrated.
Content
Numbers, numbers, numbers.
Sometimes it's more fitting to have a bit more of quality and less of quantity, that sums my comment on this part. I love how the guy who made the pic underlined the fact that NV has "interesting characters", and F3 doesn't have any interesting character, as axioms, just to go begging the question on how FNV is advanced and F3 sucks.
It's fun to observe it underlines NV has more weapons (as if I cared to have 100+ more weapons in that game, Fallout 2 has less than 150 weapons and it's still a great game).
Minigames can be fun, if you know how to structure them, here are sometimes fun but not really, it would have been better to tie all of them to something factual; they don't add any real value to the game. I remember playing F2 with a gambler and I rarely used those mini-minigames as a source of fun, because aside giving you money, you couldn't do anything else with them, and that's how they were intended, to waste some time to have some cash, not to add anything.
Hardcore mode...
How do I say it? It can be a nice thing for a restricted number of players, but surely it doesn't provide any real challenge that isn't finding all the water and food you need. On the gaming side, it's fairly useless.
F1 and 2 didn't have this stuff and I appreciate it, because if I wanted to play a damn rpg game I'd play those, not The Sims 4.