Not sure if I agree about bar readings in all situations, since when my Dash or G1 showed low bars, internet was slow and when no bars, internet and phone calls did not work. Then again, VZW could be different.
People can verify by testing Youtube vids in areas one device shows 3G and the other 1X. That is a more absolute test than trusting dB readings or bars. I did not take time to test this, since it worked great in town. Leaving town and the high coverage is where the dancing bars and 1X starts for Inc, but not Droid.
I tested Droid and Inc earlier and thought they were about the same, but I notice about a two bar difference in lower coverage areas (they both are about the same in high coverage areas). Inc seems to do a lot of bar bouncing while the Moto Droid stays steady.
I may have the same issue I have had with the N900- the hardware rocks- all except the phone radios

. Might be keeping the Droid and returning the Inc.... Darn, Inc has my phone number too. I expected to keep the Inc and return the Droid
Perhaps it is still an easy change. Need to do Youtube and download tests first.
Update: I hope you folks above are correct and it is just a "bad bar" problem. Droid out of the box did not (still does not) have 2.1.