Sonic Adventure (and pretty much all of the Sonic franchise) is
teeeerrible. That series stopped being good right after Green Hill Zone Act 1. Music is generally pretty great (barring the Crush 40 stuff), but a good soundtrack can only take you so far.
The N64 is easily my least favorite console, out of all the big ones. Outside of a few stand-out titles, as influential as some of them may have been, it's a burning pile of blurry garbage.
Super Mario Sunshine is the worst 3D Mario game. The levels are less actual designed levels and more the scribblings of a madman made 3D. The controls felt ever-so-slightly off. FLUDD is a really lame mechanic. At least it's got a nice look? Delfino Plaza's got a catchy tune? I dunno, man.
This song's pretty dope, though.
Half-Life 2 is kinda sorta really lame, especially compared to the first. Levels are bland, shooting is bad, enemies are boring, vehicle segments sucked. A lot of people praised its cutscenes, saying that it was cool that they weren't fixed (like, you could move around and junk) even though they just lock you in a tiny room most of the time, so they might as well have just made a real cutscene. In the first game, you could pretty much waltz past any lame-o wasting your time with plot-related mumbo jumbo.
Fallout 3 is really mediocre and is a poor excuse for a Fallout game and New Vegas is better in every single way and Bethesda should never make a Fallout game again so I can live in my fantasy universe where the series ended at 2 and all was well with the world and also most Bethesda games are overrated piles of vaguely nauseating goop.
Demon's Souls was a better game than Dark Souls all-around. Dark Souls is fantastic, but it's so uneven. There are entire areas that just suck. Namely Demon Ruins, Lost Izalith, and Blighttown. A few of the bosses were pretty lame as well, such as Seath, Pinwheel, Capra Demon, Bed of Chaos, Demon Firesage. I also found Demon's Souls to be more interesting on the story front. Also, Dark Souls 2 is laaame.
Sudowoodo is a golden god and Lucario is the worst Pokemon design ever probably. I also don't think the Pokemon games are all that great. I love the universe and all, but that's all I love. The games all follow the same broad strokes in terms of story, the fights take little to no effort, yadda yadda. Maybe it's because I'm not 10 anymore, but even the overwhelming amounts of charm the series possesses can't really pick up the slack anymore.
Furthermore:
Persona 2 > Persona 4.
Far Cry 2 > Far Cry 3.
MGS2 > MGS3.
Portal > Portal 2
Pokemon Gen 2 > Everything else.
And Goldeneye has always been, and forever will be, a bad game.
EDIT: Slightly reworded for your reading pleasure.