Really should state the PURPOSE of the opamp you are recommending.
I/V - I've heard great things of the OPA1632 for I/V - TwistedPearAudio uses it and I must admit, I love their stuff.
|Driving headphones directly - AD8397 is pretty damn good and rail-rail.|
The AD8397 is powerful but: 1) lacks some body on vocals despite its current 2) sounds dryish in the mids 3) lacks a bit of color. At 24V it was less dry and a bit more natural.
|Behind a buffer, I like AD825, AD8065, LME49710 among with a few others.|
Instead, I do like the LME49710 quite a bit (despite my criticism to it ) inside my DIYEDEN SVDAC05. Nonetheless, the LT1355 sounds just as good (if slightly different) inside the other DAC and at a lower supply voltage. The same is true of the LT1358 I'd used before.