I've recently finally been getting around to playing Sony franchises on my PS3 because I was such a Nintendo and Sega fanboy back in the day I practically missed out on PS1 and PS2 series/exclusives (and Xbox too since I only bought it for DOA) the console got. In any case, I'm just about done playing the Jak & Daxter Trilogy and I have to disagree with that piss poor statement for a game that came out in over 10 years ago the game is still playable today and enjoyed the 3 games thus far and I've especially enjoyed the story in Jak 2 and 3. While I wouldn't say it's as good as Super Mario Sunshine that is probably the nostalgia in me saying it. Had I played Jak & Daxter back when it came out originally I would probably say both are on par or if the tables were turned (was a Sony fanboy back then) I'd say Jak & Daxter is better out of nostalgia and say Super Mario Sunshine is good but not as good. I'll soon be working on more of my PS3 backlog soon and trying out Rachet and Clank Trilogy and Sly Cooper Trilogy next and see how those franchises are.
But it's your opinion and no one can change that but for someone who just played the series for the first time and was a huge Nintendo fanboy from NES - GCN I can safely say that it didn't have piss poor gameplay, but again it's your opinion. It's kind of like how I have my own opinion that Nintendo hasn't made a good Mario game since Super Mario Galaxy. New Super Mario Bros. Wii was enjoyable with co-op but sadly since me and my friends have busy lives and Nintendo being lazy to make the game online it was hard to make a play date. In fact it took nearly 2 years for me to play World 1 to World 5 but that's because I refused to play the game without co-op. Eventually in late 2011 I got tired of taking so long and decided to replay the 1st 5 worlds along with the ones I have yet to play without co-op and I gotta say the game was boring. This game was nowhere near as enjoyable as I found it when I was playing with friends. I did enjoy the first New Super Mario Bros. game but that's probably where the issue was that aside from the co-op the games were pretty much the same it wasn't ground changing like Super Mario Bros. 1, 3, and World. I just recently got around to playing New Super Mario Bros. 2 for the 3DS and again found that game to be boring, tho I honestly knew it wasn't gonna be great since it looked identical to the first 2 games when it was revealed. It was like they literally just copy and pasted the game changed a few things around and called it a day. I have yet to buy New Super Mario Bros. U but after my ordeals with the last I won't buy it unless it was around $20. If it had online co-op on the other hand I would definitely of bought the game Day One. I also recently got around to playing Super Mario Galaxy 2 after having it sit on my shelf for 2 years and while it was good game it was no where near as good as the original. I've played Super Mario Galaxy 3 times already since 2007 with this past April being the 3rd time and I'm still amazed by it and found it so fun and enjoyable along with the story being perfect. Super Mario Galaxy 2 however felt like a quick cash in my opinion, tho like I said it was good but nothing amazing like the first one. Miyamoto recently said about possibly making Super Mario Galaxy 3 down the line and I honestly hope not because he'll just turn this in a quick cash in series like the New Mario Bros. series is like. I'd rather see a true sequel to Super Mario Galaxy like it's predecessors Mario Sunshine and Mario 64 were completely brand new. Finally there's the Paper Mario franchise. I love the Paper Mario series the first 2 games were amazing game play wise and story wise (and this isn't nostalgia because I began playing them just back in 2011 and proceeded to play the sequels every 6 months after the last one), however I heard the stories about Super Paper Mario and was ready to expect the worst and while the game was completely different from the first two which I didn't like it still had it's charm and that was mostly due to the story. Paper Mario: Sticker Star on the other hand was the worst out of the Paper Mario franchise. The game wasn't memorable (honestly the only thing the sticks out to my mind was the Forest arc which wasn't fun either), the sticker mechanics was pretty bad and I always kept holding back not wanting to use amazing stickers because I wasn't sure if I'd get another anytime soon and got frustrated when I'd waste too much stickers on a pointless battle. In fact battling was pretty much pointless since you didn't earn EXP, sure you got coins but those were easy to get even without battling and once you've reached the Snow world and could do that easy coin trick grinding battling anyone further in the game was pretty much moot. Super Mario 3D Land a good game for the 3DS but I don't find anything attractive for the upcoming Super Mario 3D World. It feels like they did with New Super Mario Bros DS to Wii where it's practically the same game but they just made it for console and added co-op. I was honestly looking forward to a true successor to Mario Galaxy and when I saw that I was just disappointed. If anything this should've been the game to be released when the Wii U came out and not New Mario U. Now this whole rant doesn't mean I hate Mario games since I obviously still buy them but I just think there hasn't been a good Mario game since Galaxy 1 and with how things are going I don't see that changing anytime soon.
tl;dr Mario games haven't been good since Mario Galaxy but that's just my opinion.