Buses randomly start at either Jamaica or Martinique. There's no pattern to this. It's not like all Epcot-bound buses start at Jamaica or all buses FROM Epcot start at Martinique, and so on.
So, to answer the question you're probably really asking ... no, there's no one village to request in order to have the best advantage as far as getting a seat on a bus or having the shortest drive around the resort.
And just so you can see it, buses that start at Jamaica then go to Aruba, Barbados, Martinique, Old Port Royale, Trinidad North and then Trinidad South before leaving the complex.
Buses that start at Martinique then go to OPR, Trinidad North, Trinidad South, Jamaica, Aruba and then Barbados before leaving the complex.
On the way back from a park once or twice (after park closing), the driver held a singing contest, divided us into teams by whether you wanted his first drop-off stop to be Jamaica or Martinique. It was fun, even if a few of us had sleeping toddlers with us.