Hi Judderman,
Well here's my opinion.

There are so many factors to consider that you are going to have to take a few months of playing and comparing makes and models.
I have checked out the following weighted boards. But I wanted a synth. Balanced vrs Graded really didn't matter to me. But I do like resistance.
Roland FP-3
Roland XV88
Roland RD150
Roland RD700
Korg SP200
Korg Triton LE 88
Kork Triton Studio 88
Kurzwiel PC2X
Motif 8
Yamaha P80
Yamaha P200
Yamaha P250
Yamaha S08
Yamaha S90

These above boards are a fair mix. They range from about 800 to 3500. My budget was about 1000. I happened to find myself liking the Yamaha keybeds better. I thought Roland and Korg's were lighter than Yamaha's. I really liked the Kurzweil PC2X but it was out of my price range.

I wanted to be able to play back sequences, but I do my creating of them with a PC based sequencer. I also wanted multi-timbral, some digital pianos are not, just about all synths are. I wanted some room for expansion. In the end, I purchased a used Yamaha S80 right at my price range.

Incidently, the S90 was my top choice at any price, too bad it was out of my reach. The S80 my second choice.

It seemed easy enough at first to go and pick out the right board for me, but the more I learned about features the more complicated it became. It took me several months to decide. I also like to have a lighter key keyboard for organ and strings work (and drums). So I'm not a strict pianist, although playing the piano allows me to most freely express myself. With that, I really wanted a board that would truly react to my dynamics. So look for that too. some boards jut didn't react the way I wanted them too.

I also think that right now there is no electronic keyboard to take the place of a real acoustic. the dynamics of a real piano can not be met yet. With that, you will most likely have to compromise on something, somewhere. Whereas the best sound to me was less important than the best reaction of my fingers. I mean when I play softly, I want the board to play quitely, when I stick a note hard, I want it jumping out.

best wishes
<><
Bob