1000% look. Not even a question. Can you imagine how dope it would be if Jar Jar in the movies had a deep ass voice? Like shit, imagine if he was voiced by Samuel L Jackson or some shit. He would be chill as fuck. I'd want to smoke some weed with that funny looking guy. People who pick voice want to hide from this life changing experience, but bro you gotta own it.
Sound
And then learn sign language + immediately do whatever is necessary to my throat to prevent it from ever being able to form another sound, since you said nothing about that
This is actually a really tough choice imo.
I think I'd like to have his body look like him but if I this was a real IRL choice I'd choose to talk like him probably
Do you know how many people are horny for jar jar. To feel that long tongue slithering about inside them. Of course I'm going to take jar jar's body. And then take voice training lessons to talk like him.