Best 4 person all melee/hybrid group

[Vexenu]

Bard and Paladin seem like a lock (basically the Enchanter/Cleric of melee/hybrids) but after that it gets debatable depending on preferences. Do you add ROG/ROG for max DPS and rely on lulls to pull? ROG/MNK for high DPS with some FD pulling? Toss in a Ranger somewhere for SoW, snares and tracking? Can anyone possibly make a reasonable argument to include a Warrior or SK in this group? And what is the toughest mob a four-man melee/hybrid group could theoretically kill?