To the OP and the path:
I doubt that Rakkis is anywhere close to Keep2, Arreat Crater 2 or even Fields of Slaughter. Also, Core of Arreat is so extremely fast that even if it has little white mobs the chance to encounter elites and goblin should easily compensate for it.
Tower of the Damned should be done anticlockwise because that let you check the area close to exit for elite without actually going there blindly.
Rakkis doesn't have the mob density of Crater 2, but it's more "constant" and thus my Archon never wears off when running Rakkis. In Crater 2 you can run out of mobs and end up having 1 minute cooldown on Archon, so at least for wizards Rakkis is 2nd best after Keep 2. I really like Fields, but they're definitely worse than Rakkis.
Totally agree to Tower though - should be done counter clockwise.
Rakkis doesn't have the mob density of Crater 2, but it's more "constant" and thus my Archon never wears off when running Rakkis. In Crater 2 you can run out of mobs and end up having 1 minute cooldown on Archon, so at least for wizards Rakkis is 2nd best after Keep 2. I really like Fields, but they're definitely worse than Rakkis.
Totally agree to Tower though - should be done counter clockwise.