Guilty Pleasures? Um...
Horror B Movies. But, only if they're monster movies. I don't care for vampires, demons, ghosts, or people being the threat. Giant bugs, strange space monsters, or an ancient undersea creature... I'm just into that. I don't care how bad the acting is. I only care about the creature effects and making them not feel silly. I used to have a soft spot for all the silly monster movies on SyFy Channel. That was, before their creature effects just got horrendous. Like, if we're at the point you have to CGI in some blood and gore... we're done here. You want your monster to be 100% CGI? Fine. But, if what it does is also 100% CGI... then no, we're done. Smash some buildings for real. Use some fake blood splatter packs on people you're killing. Get some real explosions in there.
I'd rather watch "Carnosaur" than watch "Poseidon Rex". At bad as the creature effects are in both, at least one of them has convincing blood, explosions, and property damage.
I also have a soft spot for "harem" and "romance" anime. It's all 100% predictable, but I love it anyway. It touches this part in the very heart of my being that just makes me feel stuff. So, I enjoy them. No, I don't care how terrible or predictable it is. I watched Sword Art Online purely for the romance between the two protagonists and not for the silly storyline they had invented (though, at times, it could be interesting). I have the same soft spot for ecchi anime, so long as its primary motivation is the romance plotline and not the "here's risque outfits" thing.
Oh, Isekai anime too. Yes, it's all predictable. No, I don't often care. But, I tend to watch these as "comedy" type anime. Most of the time, they're not meant to be taken seriously either. Though, there are ones that take it seriously and are VERY GOOD as a result.
In terms of video games...
I dunno, I have a few terrible video games that I love playing, despite how terrible they are. I got into "Army of Two" as well as "The Bureau". I also love the first Farcry and think it's the best in the series (and I REALLY want to go back to us having animal powers, because that was so much fun and so much more interesting than this "fish out of water" crap we've been doing for the last three games). I enjoyed the crap out of Resident Evil 5, but I think that's because I played it with a friend and we completed it on the hardest difficulty together. It was genuinely a lot of fun despite how many people hated it. I did love "Brink" as well, which was essentially an FPS where getting kills didn't really do anything and wasn't worth nearly as many points as actually playing the objective. Perhaps this is why I enjoyed it... it was a game that forced you to play the objective instead of farming kills (I mean a kill was worth like 10 points, but sitting on an objective for 30 seconds was worth like 400 points). I also liked the class system. Though, the map design on some of the levels was just atrocious. I loved Final Fantasy X despite how many people hated that... Also, most of those people don't understand writing or even why Tidus laughs the way he does (people so often point this out as bad voice acting, not realizing that he's intentionally laughing terribly and it's supposed to be done that way... but... well... what can you do about people who aren't paying attention in a game and just want to grind combat like robots?)
As for TV shows... I dunno. I don't really watch all that many. I love Kitchen Nightmares, both US and UK versions. I love Cutthroat Kitchen (though I wish they'd spend more time explaining how to get around the challenges in some of the episodes, as you learn interesting things about cooking that way). I love "Ancient Aliens". I mean, I don't believe anything on Ancient Aliens, but it's kind of a fun program to watch anyway. I mean... it's like a slow motion train wreck. It's these people who have made up their own historical mysteries and then tried to find ways to make those historical mysteries very plausible and scientifically accurate. It's sort of amusing to watch. It's watching "Magical Thinking" in near real-time.
That's all I got, I guess.