Regrettably my friend, there’s no way to know without trying both. I much prefer researching products before buying, but that’ll only get you so far in this. Best thing to do: pick one, use it regularly for a few weeks, and then adjust from there. Even then, you may, as I have, find one’s preferences change over time.Every time I think I made up my mind, I make the mistake to read some more threads to find something about this or that one little side point, and find myself right at the beginning again in no time...
Would you say that as a face latherer, I should rather go for badger, comparing the same model, for example a Duke 3 in Best versus Duke 3 Synthetic? (Ignoring differences in ethical concerns, quicker drying and the like.)