I can hear both clearly

Crocodiles do a deep rumble sound that makes the water splash up during mating time. So probably the baritone.

Gilbert Gottfried. Definitely Gilbert Gottfried's voice.

I don’t know about crocodiles, but in my head all alligators sound like Michael-Leon Wooley and play trumpet.

They sound like this

https://youtu.be/27U6dyYE9rA?feature=shared

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It's hard to tell if crocodiles would speak in a deep, velvety baritone or a sort of obsequious court eunuch voice