Full Bands V. Full Torch

I'm not sure but I believe PCGS doesn't use the Full Torch designation.
To them it's Full Bands.

You are correct, the NGC terminology is "Full Torch" because they expect the bands to be clearly separated and for the lines of the torch to be distinguishable. PCGS's "Full Bands" applies only to the bands, and not the torch body. As such, NGC's is more stringent, but ultimately, if your coin looks to be FT, it will be FB, but there's a chance that if it looks FB it still may not be FT.

If values are similar as you say, the difference comes down to preference of company because ultimately what FT and FB are telling you is the same thing: a good strike