The Tenerife crash was a result of the impatient Captains desire to get going, despite what ATC was saying, even the first officer is heard to say "Wait, we don't have clearance!"
If in doubt, don't. Then clarify before proceeding.
I can't think of any instance where saying "line up and wait" vs "taxi into position and hold", or vice versa would have made any difference in the outcome.