Red Marble?

You have a bag with 7 marbles, 6 are blue and 1 is red. 7 people will choose, one at a time, trying to avoid the red marble. Is there any advantage to when you choose? (1st , last or other) Some say last since that allows everyone else to take their 1 in 7 chance before you, therefore increasing the chances one of them will get it before you. Others feel it makes no difference, since the odds are 1 in 7 for every one.

If the marbles are taken out of the bag, the person with the best chance is the first one to draw.