Everyone will list their favorite job's WS here for "broken". There are many but I'd prefer to keep it down to specific Job's needing better choices. Entropy sucks but DRK can use a Rag and Resolution so it should be lower on the priority list. In that same vein Rudra's Storm sucks but THF has access to MS, though dancer is screwed. I would like to see RS be allowed to crit, or DNC put on Mandau to compensate for it. Also Exten should be modified to allow fTP to carry across all hits.

Cloudsplitter sucks but BST has access to the BST 1H WS in the game. Ruinator is four (five as DW) hit attack that can copy fTP for a total of 6.0 fTP before DA/TA procs. It's also 100% STR WSC and carries a ~35% attack bonus. So even if they do buff CS it won't hold a candle to Ruin's damage output.

All considered, DNC, PUP, NIN are the jobs without really nice WS options. For weapons most of the relic WS's suck but the recent merit ones mostly make up for that.