For me, it'd be games like Hotel Mario on CDi (it was actually a decent, challenging puzzle platformer with those hilariously bad cutscenes adding to the experience).
For a more elaborate answer it would be Resident Evil 0, which seems to always get hated on by the fanbase for some reason. Yes, the inventory system got a bit annoying at times (that hookshot taking up two slots was bad design, no doubt) but you work around it just like in other Resident Evil games and frankly, just seeing the same complaints lodged against it constantly doesn't change my mind. I think the game is good. Very good actually, the visuals on this game are amazing. The Art Direction is honestly on point and I really liked both Rebecca and Billy as the protagonists. This was the last "classic" Resident Evil game, I really took my time before getting to it, it wasn't until it came out in "HD" on PS4/Xbox One/PC etc that I actually played it for the first time. Was the plot silly? Yes, just like the vast majority of Resi Evil plots are, so what? The game had atmosphere, it had tension, it had that classic RE feel and was a good Resident Evil game. Haters can carry on hating, I'll just enjoy the game.
Which brings me to one of my favourite games on the PS2 and one of the best RPG games I've had the pleasure of playing that gets hated on a lot too:
Breath of Fire fans seem to harp on this game a lot. It wasn't BoF to them, as in, it wasn't a traditional RPG experience. It tried to be daring and try new things, tried to be more strategic and action based (so a hybrid system that might remind some people of the likes of Vagrant Story or Parasite Eve - an action based system where you move your character, select your action and make a move continually until the enemy's turn). This is a hard game. In fact, it's up there with Atlus's RPGs for some of the hardest PS2 RPGs. The game actually in a way wants you to die, since more of the story becomes revealed and the layers peeled back when you continue through the game from the beginning (yes, that's right, you die, it's game over, no continues in the EU release at all!) It does not your hold your hand. It's also the one and only time I've seen Capcom make a game like this one. Personally, I think it's a masterpiece (especially in terms of atmosphere, I think it might be Hitoshi Sakimoto's best soundtrack, even beating the likes of Vagrant Story and Final Fantasy Tactics, sounds very industrial and dark) but people hate for being so different; often treating like the black sheep of the series and yet...it's the one I like
by far the most (3 was decent, 4 is a good game, never played 1 and 2). It's one of the PS2's best hidden gems, don't listen to those BoF fans, they don't know what they are talking about. The fanbase for this game is microscopic, shame more people didn't give it a chance.
Mass Effect: Andromeda, without doubt. Sure it didn't have a better story or delivery than the original trilogy, but it was a solid game. I jumped on board after everything was patched though as I only buy games in the sales. £20's the most I'll spend on em.
Funny you should mention that, playing the game at the moment since it was on PSN sale and it's surprisingly good. All that shit getting flung at it, I mean yeah the animations were hilarious and the game definitely has its flaws (the story is definitely lacking and a bit been there done that, as are some of the party members, I do like the Krogan and the two pilots though) but it's still a solid Action RPG regardless. Is it up to the original trilogy? No, still an enjoyable game in its own right though. It actually inspired me to go back to the first game again and start over, reminding me how much I enjoyed the series in the first place.