Even though WHMs have pretty awesome skill with Club, and I know you guys are joking, but even if it were possible for a WHM to Melee in a party, clubs are the worst damage/delay ratioed weapons in the game. Feeding more TP for basically the same damage as a Mandau.
Sadly, red mage melee would be more effective just because of that key point alone, since they can actually equip a Mandau.
Also, I don't recall if I mentioned it earlier in the thread, but anyway it's still really important: Render priority. When I can't do <pettp> because my pets aren't rendered because of too many people on screen, I get pissed.
Mobs/Key NPCs(Ex: Besieged/Escort) > Party > Personal Pet/NPC > Alliance > Alliance/Party Pets/NPCs > Everything else. How fucking hard is that to code