It's subjective, system matching, preferences etc. I am a lover of resolution and detail over warmth, I love my Weiss DAC for that reason, so I think I will go for Tak's as my 300B tube upgrade. I'm old enough to know me, and if I don't and go with EML or something else I will always wonder what I might be missing.
Here is another lesser-known review with many of tubes mentioned above- but you need to subtitle- there is a graphic at the end so you might just want to skip there. Just one person's opinion of course. Would have been so much better if WE's were included.