Right now, my fave pair of tubes just happen to be the 1970 6DJ8 Steel Pin Amperex Orange Globe A-Frames from Holland- matched right down to the label. Believe it or not, at least in the Melos SHA-Gold, they beat the near-fabled White Label "PQ" Shield USA Amperex Gold Pin 7308, matched tubes from '62 and '64. I'd go 1-2, #3 being the 6DJ8 A-Frame Mullards. I won't change my sig until I'm definitely certain tho.
The globes don't go as deep in the bass as the 7308, but there is more of a coherent transition between frequencies. It's like the 7308 is trying to show off with nonstop impact and extension and detail, while the globes only pop out the impact when appropriate, more organic in the extension and natural in the detail. Warm, but more precise than the Mullards without being laser-like, like the 7308. Zero noise from the globes and 7308, the floor a bit higher in the Mullards. None of these tubes have grain (unlike the unfortunate 6N1P "Pink Russians") but the Mullards may be a bit too rounded on top, while the 7308 is quick and sharp, the globes giving me that smoothness without any obscuring sheen.
Sorry if none of this is precise, it's just the way i feel about them relative to each other, across all genres of music. All three of these beat the Bugle Boys I have as spares, and a pair of mid 70s ring getter orange globes. Hope this helps!
Edit - in audiophile terms, what the orange globes have over the 7308 is "a liquid, rich harmonic rightness."