Sometimes, one questions gets two really good answers. Provided that both answers are equally good, I know I have to eventually pick one, and I guess it would be an arbitrary choice. However, is there any way to split the points or give the other person some points in any way?
You have three independent options:
Approving an answer.
Upvoting an answer.
You have to make a choice concerning #1, but ##2 and 3 are available for all answers. Use them liberally to indicate your satisfaction. In some cases you might choose to let timeliness be the tie breaker: approve the earlier answer.