With no mods/only around 10 or less CC, my Sims3 game plays fine. Out of the two, I love S3 better. I think the open world, my sims doing what I want period when I want it, my sims able to run when I want, the huge amount of content in EPs versus now, content coming out often compared to "when are we ever going to get something new, fun content versus a party themed game (I next to never use the party nor go to the clubs; family, traveling, collecting are some things I like). My sims in S4 cancel out what I want at times. Toddlers are able to get down from highchairs by themselves and my sims won't do anything once they have a mind to get them down out of the highchairs with no way to cancel it because they won't stop. In S3, I can leave my toddlers in the chair all day if I want and the sims don't override what I want done in my game. While I made many things with the color wheel and liked it, I could live with the way S4 does it if only they would really consider colors. Basic colors should always be there along with the others they choose. There are some outfits that I can't use with some shoes because there is no black or white choices and the colors don't match. With emotions being huge in S4, there aren't favorites to pick out in S4, like there was in S3. I don't think the favorites did much in S3, but I always loved picking them out. Also, this many years and boy/girlfriend option in relationships in CAS isn't an option??? :( and NO GROCERY STORE??? :/ :s :'( This last one is a disgrace, this far into the game. Loads of partying, but no grocery store. Not everyone uses the party stuff, but every sim has to eat and some would like to go to the store and get all the fruits/veg./other foods without collecting or gardening at all.
That said, there are also things I like about S4 that S3 can't touch.
1. First, the ease of getting in and out of game and saving.
2. Having CC content turned off in the gallery so that tainted CC can't get into our games and mess them up. If someone wants extras then they should have to work for it. There came a point in time that I just quit downloading from S3 gallery, because people said no cc, but the content came with it anyways. Now, we can see what packs ect. the downloads come with. As I said in S3 forums, a game's gallery shouldn't be able to wreck your game. If you choose to add extras, then you take the chances and the pains that come with them, but Vanilla should be a given.
3. The fact that it is easy to take accessories off in CAS extremely easy as opposed to having to find it in "an all day list" and manually taking it off one by one. Getting out of CAS fast as opposed to S3 long loading.
4. The house building system: roofs, moving the house, ect.
5. I just love the yardsale table, finding stuff on city streets, and the buying table in the new vacation destination. I hope so much that we can get a huge FARMING EP and add to this.
6. Very happy with Pets not adding to house count, being able to be sold, ect. I wasn't exactly planning to get Pets(I just don't play with them much and small pets/new aquariums not being added was a huge letdown), but was very pleased by CAS and the vet job.
7. LOVE the adoption(kids and pet) just wish they had a kennel at the vets office for it and that there was an adoption agency. I don't like poof your here.
8. BEING able to go and find TOWNIES/THOSE NOT IN GAME and doing what you want with them as opposed to S3 having to build relations/add to household to do anything with them. <3
I'm personally glad that S4 is continuing, because I feel that we don't have 90% or more of the content we had in S3 and frankly, I would be mad and feel cheated after putting this much money in S4 only to have it close down with such limited content. I feel that the last vacation destination was a huge step in the right direction. <3 There are some things right with this game and with just the right content: SEASONS, FARM EP, UNIVERSITY, MORE VACATIONS, MORE JOBS(interior design, stylist, house builder <3 <3 <3 <3 , wedding planner, grim fleshed out with wills, funerals, urn/gravestone options, services), and collecting insects/and the addition of small pets/more fish tanks (EXTREMELY TALL FISHTANK THAT SIMS CAN SWIM IN LIKE IN PAST SIMS GAMES, COFFEE TABLE AQUARIUM UPDATED OR ADDED TO, AND MANY MORE OPTIONS FOR AQUARIUMS AND WHAT YOU CAN BUY AT THE FISH STORE). I'm not into supernaturals past vampires, but I would love some FANTASY creatures and the ability to add them to your house with the ease of Pets. I don't want to work for a unicorn. Unicorns, angels, dragons, manitaurs, Pegasus, ect added with ease and customization. Visiting the wizards & witches culdesack and buying fantasy beasts or if it is a mentaur, adding to the household. Potions would be a blast & Secret doors that you don't have to work for would be a blast. Miss instant best friend potion. I hate leveling up or working for things. I want to be able to aquire and buy at ease and if some want to work for it, then there is that option for them.
My hope is that S4, since it is online(able to get to your content from now on as opposed to loosing it/instant fixes/fix game) lasts for many more years to come and I mean like 7 or so. With fresh content and more of it, I think S4 could shape up and be a must play game. We just have to get the content that makes a simmer say, "Which way do I want to go". In S3, we had: World Adventures, University, Seasons, Supernatural, a loads of worlds, so it really seemed like you had choices instead of just creating a sim in S4 and going from there. I think that is what is missing in S4 that S3 got right.
My hope is that they NEVER move on to S5 until they can make a game outstanding as the Sims 3 with all the eases/+'s/innovations of S4. OPEN WORLD & loads of content. :p
Wish we had the underline feature back for the forums comment section. :)