I know the answer is "the one you can find" but I believe I have a source for these two.
If you could choose between
this one and
that one, which one would it be?
They'll end up on an open wood frame.
Blower bs non-blower?
Better resale value (to gamers)?
Better reliability (for instance, are three fans better because you can run two of them while you source a replacement for the third)?
Better hashrate, maybe?