Depends on other stats. TFL not from sacks, forced fumbles etc. And of course there's bias in big plays/playing for a team on the national spotlight.
Say Parsons ends with 14 sacks, 13 tfl non sacks 4 ff and 100 tackles. *
Phillips ends up with 16 sacks, 4 tfl non sacks, 1 ff 60 tackles **
*prorated numbers
**prorated but added emphasis on additional sacks due to more PT
I say Parsons should still win it.
Imo he would need to fall off a cliff with Philips posting multiple games with 2 or more sacks for it to be a race.
What Parsons has over Phillips to voters other than total tackles was his ability to show up in national games too.
Chiefs game he had 2 sacks and a lot of pressures.
Vikings game had 11 tackles 4 for losses and some where big time stops in 2nd half
Raiders game he was in carrs face all game and had 5 hits along with a sack.
And the way he makes his presence known is something too. His power on passmoves or open field speed or the way he hits.
In splash plays(sacks, tfl, pressures, 3rd/4th down stops etc) he was leading the entire NFL prior to this past weekend.