There is no outcome that will treat all teams the same. voiding the league is punishing teams that have had a good season to benefit teams that have had a bad season. You are effectively deducting Liverpool 82 points and Man City 57 etc.
You aren't taking in to consideration things like prize money though. You can't void the league and award prize money. If no more football can be played before the cut off point for ending the season you would have to award prize money based on the current table or not at all. Finishing with the current table is very harsh on the three clubs currently in the relegation zone and also Wolves, Man United and Sheffield United as the 4th Champions League place was hard to call. The other 14 clubs would be fairly happy, except maybe Spurs and Arsenal who would benefit by gaining entry to Europe, but even then I don't think this would compensate enough for loss of prize money and other financial incentives.
Its a really difficult thing to call at the moment. As one of my mates pointed out, if they start playing behind closed doors and Liverpool get to the point where they can't be caught, will they just 'rest' their entire first team and throw in the kids for the remaining games? Also if they scrap relegation then the majority of teams have very little to play for!
My own personal preference would be to wait until later in the year to resume the season, but that seems to have been taken off the table now. As far as I can see its between finish with the current table vs behind closed doors.