1081 probably edges it out because it had a bit of everything, characterization, top tiers interacting, hype.
1079 and 1080 were mirrors of each other, both buildups to a single scene on the last page. Both were great but 1079 just hit harder.
1082 was kind of mid, coming off the previous 3 chapters. Still great in a vacuum though, 1078 is clear last place.
Honestly I really want to say 1079 as that was the standout chapter out of all 4, most jaw dropping. But 1081 was packed with too much good content.
1081 >= 1079 >= 1080 > 1082 >> 1078