@Jude525: I'm totally with you on the Sims 4. I was playing it for several days this week, because the lag in my Sims 3 game was annoying to me, but I do NOT like the gameplay at all. I just don't like the whole moods (aka "emotions" - baloney) thing.
The Sims don't have much in the way of personality. You can only select three traits; In Sims3, depending upon how you change the Traits XML, you can select as many as you want. Actually, with a mod you can add more in Sims 4, but they don't appear to affect the personality of the Sim AT ALL. Not that I've seen, at least. I guess the creators assumed that because we can change the walk style that it changes the actual personality, to which I say, not hardly. Especially since the Sim's mood totally changes his/her walk style anyway.
And it's just BORING. I like a few things, like the rocketships, and the idea of evolving plants. I like being able to graft plants; I hate that fish start to rot as soon as you catch them. (Once again: a mod fixes this, fortunately. Until I got that mod, I just decided to ignore fishing, once I realized the problem.) Most of the game play though, I just don't find interesting. I don't find juggling moods to be something I really like dealing with.
The Aspiration system... I'm ambivalent on that. In some respects I like it, in others I don't. I like that you can change your Aspiration without losing progress on it, especially if you come up against a requirement that you don't think you can manage for a while. I just don't like some of the requirements for some of them. (Like, for the Soul Mate aspiration, my Sims had to have two Silver level dates. Getting a Gold level date did NOT count. Huh? :confounded: )
If I had a different play style, I could see myself enjoying it. I tend to focus on one or two Sims, though, and have them run around a world and do lots of different things. Fun to do in Sims 3; a bit difficult - and not as interesting - in Sims 4. People who play Legacy or family style play also wouldn't enjoy it, despite what they've added with toddlers and all that. The game focuses on things having to do with grouping, and outings, and hanging out with other people. That's all the fun stuff, and I did some of that, but I didn't want my whole game focused on it.
I watched a Let's Play by Wallin way back when S4 came out, and it was hilarious and looked like fun. But his style is to play huge households with each of them doing a bunch of different things, and that seems to be what works best for the game.
So despite the lag in Sims 3, I'll stick with it. It's a much more fun game than Sims 4 is, even when you start to add expansions. Admittedly, right now I only have two of the expansions, and none of the game packs or stuff packs. So maybe with more of them it would be more fun... except that I can't see it changing the game play all that much.
That said, the one pack I REALLY want right now is the vampires one. Not for the vampires per se, but for the building possibilities. (I'm ambivalent towards vampires. Now, if they had added witches and fairies at the same time, I wouldn't be waiting even a minute to buy that game pack.)
The dogs and cats expansion looks interesting. I also find it interesting that they didn't bring back horses; guess they realized the problem with horses getting stuck in Sims 3 all the time, and didn't want to deal with it in Sims 4. Can't say as I blame them. :) But I learned from Sims 3; don't buy the pets expansion right away. I still remember seeing stretched pets because they were trying to do human interactions with things, and how creepy looking that was. :anguished: Maybe they'll have the same problem, maybe they won't... but I'll wait. For a sale, at the very least. ;)
I like what the Guru said about how no one used the Pets CAS much in Sims 3, because it was so complicated. I'm glad they simplified things in Sims 4; I never did get the hang of making pets in Sims 3, it was always pretty much a random dice roll for me. :) But man, kittens in Sims 3 are so unbelievably cute! I sometimes put my human Sims doing something on autopilot, just so I can watch one of their kittens! :D.
Edit: Btw, there have been mods that have made it so you can continue doing the various holiday challenges, even after the holiday is past. Unfortunately, Shimrod doesn't appear to be updating his mods for Sims 4 anymore, and he's the one who made them. Since they're script mods and not XMLs, it's not easy for someone else to simply take over the mod; they'll have to make it all again from scratch. Still, it just says that there are ways of getting around things... and of course, there area always the unlock cheats available. :) I really WISH that the Debug mode allowed you to buy things like the plants, like you can in Sims 3. Once again, a limitation in Sims 4 that I don't like. :(