As Tony stated I prefer to get my lumber rough sawn. 4/4 should be at approximately 1". It can vary some depending on drying. This may be overkill, but this is the process I have always followed for furniture or casework, it has never steered me wrong. Rough cut your lumber to dimension. I write on the end cuts, or lumber crayon on the tops. I do this because there are times I want to put the lumber back together in a particular order. As an example the left drawer and right drawer should come from the same board and put back together in that order, same faces out. These are the little things that make a big difference in the end. If it is paint grade, it does not matter. I then joint one face, and one edge perpendicular. I rip parallel edge and a pass or two through the planer. All dimensions should be larger than your finished lumber at this point. I then sticker the lumber for at least 24 hours to let the tension settle. I then go through the same process bringing the lumber to the finished dimension. The only ones I do not do this to are ones that will be glued up to make panels such as furniture tops, sides, or door fields. Those I try to keep at around 7/8". After glue up to the panels or fields I plane them to final thickness. Depending on the wood I sometimes try to do the face frames the same day. Even with slowly releasing the tension some woods, such as hard maple, can twist in the time it takes to eat a sandwich. The final thickness I use is often dictated by the quality of the lumber I am starting with. I prefer to work with 13/16, but sometimes I just can't squeeze that out of all the boards, in which case I do 3/4. Really makes no difference. My face frames I still do as mortise and tenon. Door frames I do cope and stick on a spindle shaper. Panels are raised on a spindle shaper. The biggest thing you can do is find a method that works for you that gives you consistent results. Everything from process, to machine set-up. I constantly check my machines for accuracy. Even with that, when I glue up panels I run opposing faces against the fence of my jointer when squaring edges. This way, if the fence is out at all, it will always compensate for itself.