The thing with synths is that its all personal choice and preference.
I don’t have much space, so having multiple keybeds doesn’t work for me - I have a Keystep chained to my synths and set each track to a different channel.
1, 2, 3 and 4 are Analog Four tracks
5, 6, 7 and 8 are Digitone tracks
11, 12, 13, 14 , 15 and 16 are Model Samples tracks
9 and 10 are spares to use on something like my Eurorack CV Pal
It makes for a far more compact setup and as each unit has its own sequencer, I just set it to Quantised Record and add notes to each track in turn.
Oh and the Model Samples was a gift. If I was setting up from scratch I’d pay the extra and get a Digitakt for drums and use its 8 midi tracks to mute the 8 tracks on the other 2 synths.
I have an Akai Force that I’m just learning on and using as a DAW in a box to stay away from the computer as much as possible, and sampler. Just transitioning from being a simple DJ to making my own music. I think with the Force, as you said, adding Digitone (for its unique synth) and A4 (for its analog depth) are awesome to complement. I’m gonna throw in a keystep (maybe 37) into the mix and put Minilogue XD module on the future plan. I’ll start with just Digitone and get a depth for it before moving on to the A4.