Question about transistors, gurus

Dan0h

Well-known member
I know a handful of you gurus will be able to help with this question.
What, other than the pinout differences, are the differences between these two transistors and could they be used interchangeably? I have looked at the data sheets but don’t fully understand every aspect. Is one more gainy than the other, one have a lower noise? Anyone know these two pretty well?
2n3819 vs 2n5457

As always, much appreciation for the sharing of knowledge here. Thank you.
 
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