I bought a 55 lb bag of each last year and need to make another bulk grain purchase because my supplies are running low.
Did you brew anything with close enough recipes between the two sacks that you could draw a conclusion?
Not really (unfortunately). My British beers are fairly, well, British (i.e., english yeast, lower attenuation, etc.) while my American beers tend to be very American (i.e., American yeast, higher attenuation, hoppier, etc.). I could probably try brewing my next British beer with American 2-row as a base malt (since that is the less expensive of the two malts) and evaluate any differences. But I do like the idea of having both types of malt around, if for no other reason than for authenticity's sake (and I'm probably answering my own question here).