I've had all three.
I'd rank them:
1. MB1
2. MB3
3. MB2
They are all great sticks. MB3 has jumped MB2, just because I have 2 boxes of MB3s left, and I've gone through 3 boxes already. Oliva Master Blends are one of my favorite go to sticks....just unfortunate I have a couple MB1s and almost a full box of MB2s left.
Try them if you have not had them. If they are a bit high being sold at the liquor store, PM me and I should have a 5ver to spare at cost.
Andrew