LME49600 vs discreet

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I'm building a headphone amp and I'm trying to decide if I want the opamp output buffer to be discreet or IC based.
I'm wondering if a class A buffer like this
V6v8eVC.png

Would outperform the LME49600 or vice versa?
I have a difficult time thinking of how the discreet circuit could be inferior to the IC.
 
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