can’t speak about the force (also keep in mind it has a similar OS but different workflow, it is not an mpc), so i can only talk about the one and the live.
mpc one
pros: small, more buttons (better interface)
cons: no ssd option (very important imho) , no battery (you can use an external portable powerbank tho), no multiple outs, no phono preamp, smaller pads.
mpc live
pros: very solid, big pads, ssd option (i have a 500gb samsung evo installed, perfect!), more outs, phono preamp, battery (about 6 hours autonomy).
cons: heavier, bigger, less buttons (more button combos or menu diving)
keep in mind that the mpc’s NEED external storage, the internal one is pretty small and it is better not to save anything on it and dont remove anything of the factory content, they don’t like it and it can cause glitches, freezes etc… you can install ssd (live, X) or use sd cards (up to big sizes), thumbdrives or usb hdd.
seeing all pros and cons i’d suggest the live. overall a more solid release. i have the mk1 which lacks cv\gate outs unfortunately, but the mk2 has those and the internal speakers (which initially seemed a bad joke to me, but people are reviewing them as pretty good to sketch out ideas or to play to very small audiences, friends, collaborators)