For Loop checking player locations

For Loop checking player locations

This is a Bukkit plugin, for Minecraft, using their API.
I'm trying to check if a player is in a specified location, and if they
are, then don't teleport a player there. Instead, check another location,
and spawn the player there if it's empty.
It may be better explained by the code below:
Player player = (Player) sender;
List<Player> prisoners = new ArrayList<Player>();
for (int i = 0; i < prisoners.size(); i++) {
//loc(1-12) are coords in the form of a location variable. I just wanted
to save some room.
if (!(loc1 == prisoners.get(i))){
player.teleport(loc1);
}else if (!(loc1 == prisoners.get(i).getLocation())){
player.teleport(loc2);
}else if (!(loc2 == prisoners.get(i).getLocation())){
player.teleport(loc3);
}else if (!(loc3 == prisoners.get(i).getLocation())){
player.teleport(loc4);
}else if (!(loc4 == prisoners.get(i).getLocation())){
player.teleport(loc5);
}else if (!(loc5 == prisoners.get(i).getLocation())){
player.teleport(loc6);
}else if (!(loc6 == prisoners.get(i).getLocation())){
player.teleport(loc7);
}else if (!(loc7 == prisoners.get(i).getLocation())){
player.teleport(loc8);
}else if (!(loc8 == prisoners.get(i).getLocation())){
player.teleport(loc9);
}else if (!(loc9 == prisoners.get(i).getLocation())){
player.teleport(loc10);
}else if (!(loc10 == prisoners.get(i).getLocation())){
player.teleport(loc11);
}else if (!(loc11 == prisoners.get(i).getLocation())){
player.teleport(loc12);
}else {
player.sendMessage("Sorry, the Prisoner's team is full. Try joining the
Guards, or wait until the next round.");
player.teleport(lobby);
prisoners.remove(player);
}
I want to check each location, and teleport the player to the next
available location by going through the list of players on the prisoner's
team, and checking their location.
Thanks in advance!