Advice: Which song to pick?

I have a musical theatre workshop coming up for school. I can choose whatever song I want, and am going to learn to act the hell out of it. It does NOT matter if it's overdone, as I'm not using it for an audition. I think I've got it down between:

"Here I Am" from Dirty Rotten Scoundrels

&

"Let Me Come Home" from The Wedding Singer


I can sing both songs well. What do you think? Which one will I be able to do with more acting-wise?

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Here I am.

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Here I Am. There's much more of a story and character arc to find in that song. Plus it's a better overall song.