Dex or Jax?

I need help deciding on which name to give this character:
Blonde hair, blue eyes, tan, perfect looking, really laid back, extreme sense of sarcasm, casual, barely ever angry, friendly
so, yea. Im kind of torn between [name_m]Jax[/name_m](short for [name_m]Jaxon[/name_m]) or [name_m]Dex[/name_m](short for [name_u]Dexter[/name_u]), although any new suggestions would be welcome.

oh, and also, he’s 17 years old

[name_u]Dexter[/name_u] nn [name_m]Dex[/name_m]. This name has history. [name_m]Jax[/name_m]/[name_m]Jaxon[/name_m] really aren’t names, are they? They’re modern inventions for [name_m]Jack[/name_m]/[name_m]Jackson[/name_m]. I don’t find them very attractive. I think [name_u]Everett[/name_u] nn [name_m]Rhett[/name_m] would be great too! Good luck with your writing!

[name_m]Jax[/name_m]. Though I agree that he’s be more likely to be a [name_m]Jack[/name_m] or [name_m]Jackson[/name_m] if he was born in '96.

[name_m]Dex[/name_m], totally.
[name_u]Everett[/name_u] would be cool too!

[name_u]Dexter[/name_u] nn [name_m]Dex[/name_m] for sure .

[name_m]Dax[/name_m] instead… short for nothing.

I agree with mischa, [name_u]Dexter[/name_u]-[name_m]Dex[/name_m] has definitely more history than [name_m]Jaxon[/name_m]-[name_m]Jax[/name_m], and I kind of like [name_m]Dex[/name_m] better than [name_m]Jax[/name_m].