Halo 2 > Halo 3 > Halo 3 ODST > Halo Reach > Halo CE
Based on campaigns.
After playing Halo 3 easy with the mythic skull on, i realised something. Threbrute shot in ODST has the same melee damage as the brute shot on Halo 3 with mythic skull. And it is also just as inconsistent. Sometimes a brute is 3 melees, sometimes 4. It is also a one hit kill to grunt spec ops and jackals, although 2 hits to take down a jackal majors shield.
In ODST, the melee damage of the spiker and mauler and increased dramatically. 2 hits to kill brute infantry and specialists, and 3 hits to kill brute captains. 1 hit to kill jackals and grunt majors and minors and 2 to kill grunt spec ops.
Basically, i have found that the spiker in ODST gives you the same melee strength as a spartan in Halo 3. The brute shotmis equal to the brute shot of Halo 3 with the mythic skull turned on.
/blog