Mlvl and Qlvl confusion

[Jarulf]

Tonight I traded my friend for a Cranium Basher that dropped in our game from an imp on the frozen tundra (although I was not in the game at the time it dropped).  From the information on diabloii.net, Cranium Basher has a Qlvl of 91.  But there are no super unique monsters that hang out on the tundra.

Is there any definitive listing of Mlvls?  Different sites have different information.  Darkness, for example, lists Nihlathak as 95, but I believe I've seen Nihlathak listed as 98?

Can a random boss have an Mlvl higher than 90?  Is the Cranium Basher Qlvl really 91?  Am I missing something yet again?

All random bosses (as well as super unique ones) get a +3 bonus to their level. Similary all champions get a +2 (Or is it +1?) bonus to their level. Nihlathak is indeed level 98. His monster type (which never exists alone,, only as that special boss) has a monster level of 95. Since he is a superunique boss (due to existing in the data file for super unique bosses) he get the +3 level bonus and ends up with a monster level of 98. Darkness (whatever it is) seems to have forgot about the boss bonus. As for the best list of monster levels, the games own data file (monstats.txt extractable from the patch mpq) is the best source, although perhaps not easilly to look at although it is relatively easy in excel.