Good questions.
For t-rigging (and all of it's variations) I normally use a Gamakatsu EWG 3/0, 4/0, or 5/0. The "extra wide gap" insures that even when using big bulky plastics like tubes, beefy worms, and creature baits you will have ample depth in the hook bend to insure a good hookset.
If I am fishing a small finesse plastic, or fishing a floating worm I don't use an EWG as it is a heavier hook (in the same size) than a standard off-set hook.
For fishing toads (Ribbets or HornyToads) is used to use the "superline" version of the EWG (as above) in the 5/0. I used the heavier wire superline hook b/c it almost guaranteed that my toad would splash down in the hook down position. But I found a hook I like better for toads (this is IMPORTANT...I take my toad fishing very seriously

) it's a screw lock EWG. Zoom sells one for use with the HornyToad, and I have used the Owner. Problem with the Owner is that it uses a "center-pin" in the screw-lock that tends to pull a "core" out of the plastic when a fish gets rough with ur bait. But they hold very well and are really easy to rig correctly.
I agree about the old TruTurn hooks, those things were the BOMB. Hook up percentage was really good, but I think the move to premium hooks from Asia really put a whoopin on standard, non-chemically sharpened hooks. It's ironic that some of the newest hooks on the market aren't chemically sharpened, but have gone back to mechanically sharpened. Go figure.
I'm currently playing around with a new hook that isn't even made from wire. It's called a Jack Hook and if you don't know Jack, you don't know hooks. They are actually lazer cut from plate stainless and sharpened in the same style as a TroKar Hook. You don't tie them on either........