Sadokist and henryG are on par with them , if not better. We also have Anders and Moses , ddk and black ddk as two great casting duos and unique in their own way. the best thing about these 3 duos is that they complement each other very well. We have machine , semmler who are also really good . Even our t2 casters like Harry and Hugo do a good job.
They all have their flaws , obviously. Everyone does. But imo Sado and henryG is the best casting duo when it comes to in-game analysis , hyping up in big plays, play by play casting , humor , voice , teamwork and coordination . Sado is arguably the best caster in esports.
Edit: even pansy , who got pushed away by haters was an excellent caster. She had everything a caster needs but 12 year olds couldn't stop hating her on her "high pitched voice"