It’s gotta be 2000, right?
Royal Rumble, Backlash, and Fully Loaded on the list of all-timers with Judgment Day, SummerSlam and No Way Out pretty close too. If memory serves, Unforgiven and No Mercy were pretty good too.
Any other Jan-Dec period in the ballpark for WWE?
No, the combination of Rock and HHH killing it on top, plus the Radicalz supercharging the midcard, made 2000 the best by far.