Referring back to the original question, I have the Grado Gold (original) and Ortofon OM30 (including the Super OM body).
Now, the Gold has a warm, lush sound - deep, punchy bass and a nice mid-range but treble clarity is not one of its features, although I understand the Gold2 to be better in this respect. My Gold seems to perform better (more open) on lighter arms, so should be good with the low-mass TP16 MkIII.
The OM30 also has a deep, punchy bass but a bit more focus in the treble than the Gold. Here, we have to distinguish between the OM30 (with standard OM body) and Super OM30. I find the standard OM30 a tad dark, as the treble is fairly restrained. The Super OM30 is brighter and allows treble detail to shine through, but can be a little too forward at times. I actually prefer the standard OM20, as this seems to get the balance just right with the deep bass complemented by a crisp and detailed top-end. Another alternative from Ortofon is the 520 MkII / Vinyl Master Red / Music Hall Magic 3, which is fairly neutral but very dynamic and detailed right across the frequency range.