[Daboo]

I actually think Idra is fantastic for zerg,he just knows so much( and also brings his qq personailty, and dry humour, in a dead pan way ). He might not be the most entertaining caster, but listening to him cast is awesome if your trying to learn something from the cast. the reason I enjoyed the homestory cup was the casual atmosphere coupled with the cool casting..well most of them werent the best casters, but they know so much about what was going on, which automatically made it very interesting to watch.

TLO is quite nice as terran, the german accent is quite cool.

For protoss...there arent too many protoss casters out there, incontrol is one, and even though he knows a lot, he comes across as more of an entertainment guy than a pure analytical commentator, I'd have to go with artosis, even though he's probably the best analytical caster out there, who is kinda well rounded in all the races, and is not exactly protoss specific.

Overall,I think artosis is aweosme as an analytical caster, and being in korea also lets him see new and upcoming styles easily.
Day9 used to be my favorite caster, but off late I am starting to get a little bored with his style (burnout?), and I also think he is a better caster alone (especially in the tsl when chill got kicked out, he made the match awesome).