Or even before that?
For PLD, I still find every single skill useful most of the time. The least useful is probably Tempered Will. Where it would have made a good difference it was made useless; otherwise it's more like a convenience button only when you are simply too lazy to move.
For BLMI wish these less used older spells could somehow be used to "link up" the level 60 rotation for when we have to move. For example having Fire4 give 10 seconds instant Freeze, and let Freeze extend Enochian for 10 seconds or something like that. Or having Thunder jump to every target within 5m when the main target it hits is frozen in place. Otherwise I'm seriously thinking about taking a few of these off my hotbars...
- Blizzard, Blizzard2: if I have my rotation right I shouldn't need this anyway. And I don't think I've used it since I started Heavensward.
- Thunder, Thunder2: use Thunder 3 anyway and a lot of the times the refresh is done with the proc.
- Sleep: everything that even remotely matters are immune anyway.
- Freeze: honestly don't think I've found a use for it at 50 either.
- Lethargy: very borderline useless. VERY.
For WHM:
- Stone2: I use Stone for its Slow but that's only in Syrcus Tower anyway. Otherwise Stone2 and Stone both don't see any use unless I'm syncced, and Stone2 is on my hotbar 100% because I find it extremely irritating to have to put it back up when I'm syncced. Seriously Stone3 and Stone2 is probably the most representative waste of hotbar slot in this game.
- Repose: same as the situation with Sleep.
What skills/spells you haven't used/seen a reason to use since you leveled up to 60?
Good point. Let's keep this on PvE only, then. PvP is a whole different world.