One alternative to adjusted stats is to go the 'relative to his peers' route.
During Bourque's time in the league:
Name
|
YR
|
YR
|
GP
|
G
|
A
|
P
|
PPG
Raymond Bourque
| 1980 | 2001 | 1612 | 410 | 1169 | 1579 | 0.98
Paul Coffey
| 1981 | 2001 | 1409 | 396 | 1135 | 1531 | 1.09
Larry Murphy
| 1981 | 2001 | 1615 | 287 | 929 | 1216 | 0.75
Phil Housley
| 1983 | 2001 | 1357 | 317 | 847 | 1164 | 0.86
Al MacInnis
| 1982 | 2001 | 1262 | 313 | 845 | 1158 | 0.92
The players above were all born within about 3 years of each other, making them a remarkably clean generational cohort. Bourque was a large step above them offensively except for Coffey, whose characteristics we all know well.
Playoff scoring during the same period:
Name
|
YR
|
YR
|
GP
|
G
|
A
|
P
|
PPG
Paul Coffey
| 1981 | 1999 | 194 | 59 | 137 | 196 | 1.01
Raymond Bourque
| 1980 | 2001 | 214 | 41 | 139 | 180 | 0.84
Al MacInnis
| 1984 | 2001 | 164 | 39 | 113 | 152 | 0.93
Larry Murphy
| 1981 | 2001 | 215 | 37 | 115 | 152 | 0.71
Chris Chelios
| 1984 | 2001 | 187 | 29 | 93 | 122 | 0.65
Bourque's PPG is still behind Coffey, by a slightly larger margin, and falls behind MacInnis. His PPG a large step every other defenseman besides Brian Leetch, who scored only half as many actual points during this timeframe and would be #9 if the chart went that far down.
During Lidstrom's time in the league:
Name
|
YR
|
YR
|
GP
|
G
|
A
|
P
|
PPG
Nicklas Lidstrom
| 1992 | 2012 | 1536 | 261 | 870 | 1131 | 0.74
Brian Leetch
| 1992 | 2006 | 968 | 195 | 604 | 799 | 0.83
Sergei Zubov
| 1993 | 2009 | 1068 | 152 | 619 | 771 | 0.72
Scott Niedermayer
| 1992 | 2010 | 1263 | 172 | 568 | 740 | 0.59
Sergei Gonchar
|1995 | 2012 | 1095 | 211 | 523 | 734 | 0.67
Brian Leetch and Sergei Zubov are to Lidstrom as Coffey is to Bourque. Clear-cut over him in PPG, though one could make an argument against their defense. Leetch has a better case than Zubov, though, because there was a period when he legitimately was THAT good at both ends of the ice.
Playoffs:
Player
|
YR
|
YR
|
GP
|
G
|
A
|
P
|
PPG
Nicklas Lidstrom
| 1992 | 2011 | 258 | 54 | 129 | 183 | 0.71
Chris Pronger
| 1996 | 2011 | 173 | 26 | 95 | 121 | 0.70
Sergei Zubov
| 1994 | 2008 | 164 | 24 | 93 | 117 | 0.71
Larry Murphy
| 1991 | 2001 | 147 | 22 | 86 | 108 | 0.73
Brian Rafalski
| 2000 | 2011 | 165 | 29 | 71 | 100 | 0.61
This is slightly frustrating because Lidstrom doesn't have that clean-cut group of generational peers, as evidenced by playing 50% more games than anyone else. I would have a hard time accepting Rafalski or Murphy at face value here, since they only played about half the timeframe. Pronger and Zubov appear to have legitimately been as high-scoring in the playoffs. With Pronger you could argue for a comparable if not better level of defense in certain seasons, though not all seasons. Zubov of course is the Coffey here.
Taken in combination with the adjusted stats, I'd say it seems about right to say Bourque was the better regular-season scorer by a clear margin, and the two were about equal in the playoffs.