by springbear
Here is mine: both in solo and multiplayers.2 vikings: 3 resources(usually wood) and 1 upgrade(2x2 to milk)
1 vikings: 1 resources 1 upgrade(2x2 to woof) OR 2 upgrades(also upgrade 2x1 to oil).
3 vikings: longboat and 1 card.
The benefit is you can go both exploring and pillaging in the 2nd round. Usually you get iceland(best island I think) and pillage once with 2 vikings. You can probably earn 3 silver + 1 oil + 1 ore + 1 stone from Iceland If you successfully get the E shape (need power 10) treasure.