Well, since other people already have told you what each job brings, I'll just tell you what the obvious meta party is.

PLD/DRK. AST/SCH. SAM/NIN/BRD/RDM
You could take the RDM out for a summoner, but with such a heavy physical comp, embolden will prove useful.

This comp offers both a high utility and highly offensive playstyle. Now, you could take the SCH out for the WHM, which will allow AST to go Nocturnal sect which is flat out broken to shit mitigation, and should give you the extra safety net you need. Depending on if you need LB or not, some comps may even go AST/AST, but I'd recommend AST/SCH over anything.