I love clutter items they just make my sims houses feel more like homes and I definitely could not build if i had none of that + i still need more especially things like decorative pillows or more wall details would be so awesome to have
but i also think that lot of decorative items should just be gameplay items tbh like the cabinets and boxes and whatever should work as different storage options and every book clutter should be bookcase (cause they just did some of them last time)
and plants well i would like to have to water them like ts2 it just felt more real and tea set should actually work as teamaker and... you know if its not only decorative in real life im sure they could just make it have function too