Elf is best.
And bassera the rng must hate you if you not seeing much diffrence between human and elf in % special ore / wood produced per spot.
No, I thoroughly tested it as opposed to assuming that the bonus existed in the form the devs stated (there's a bonus, but not in the form the devs have stated - something that has occurred on multiple occasions, ranging from the 8 year assumption that Tailor BODs were 50/50 normal/exceptional instead of the actual 2/1, to the statements that fish quests go 10/15/20 and hold at 20, instead of cycling back to 10 again).
Furthermore, I DIDN'T state that humans were good for lumberjacking, so don't try to act like I said something I didn't.
Wood gives more chops per tree for an elf (as much as double, in my tests), so an elf would be better even if the percentages were the same.
Mining, on the other hand, with there being NINE types of ore and digs only giving one item base (instead of 10), is a bit more random.
An Elf loses about 10% of their mining time making bank/house runs (or even stopping to use a BoS), but gets more special materials.
The additional swings from an Elf, if there are any, aren't enough
outside Fel to offset the random 10% chance for an additional ore for a human and the time lost to the additional time needed to offload. PERIOD.
In Fel, the elf has a SLIGHT edge from possible additional digs (from the double ore not applying to the free ore), but not really much outside the normal RNG for a human. In my experience, the additional digs tend to be to get additional small/medium ore.
The same holds true for stone, and before the reduction of granite weights for SA, it was even more important to have that carry capacity.
Have it set for gems and ore, and the lack of real advantage is even more apparent.
The ore differences pretty much balance out, especially if you don't mine Fel, leaving only the strength advantage as a factor.
In other words, if you're mining to supply your Imbuer, go with Elf.
But, if you're mining to supply your Blacksmith, a Human is still an option, if not actually preferred.
The jury's still out on Stone mining, since the stones weigh 1 each now.