Waveaddict is excellent, I'd recommend him (no, I don't get paid for this
).
Then there is
S3052, who is also not bad.
Cypherdoc is very different, and rather uninteresting for anyone who trades BTC. Probably more interesting for his take on other markets.
The latter two I've had experiences with from 2 or even 3 years ago, so they could have changed considerably until now.
I don't know anything about this guy, but based on what I see publicly, he looks interesting:
https://bitcointalk.org/index.php?topic=338908.msg3634710#msg3634710
