If you are asking this question after the copy was made, then the mere fact that you would be asking that question to the original, means that the original diverged from the copy. The copy was not presented with that offer (to swallow pill) and the thought processes and synaptic impressions in their brains started to diverge! They are no longer identical.

The best scenario would be if there were no concept of choice at all. Not even before the copy were made. Not even the awareness that as part of the cloning either the clone or the original would die is good enough, because you are still asking me to make a choice.

The ideal case would be I am awake today, go to sleep and tomorrow either me or my copy would wake up.