I think the comics show more of the tragedy that the universe is going through during the clone wars. You get see worlds and families fighting against the Seperatists, and you see people opposed to the Clones as well. I agree that the OT movies have more of an emotional tone to them because of the rebels, but as far as wide spread slaughter and blood the PT wins out...at least in the comics.

I think it is fairly safe to say that sometime during the period between episodes III and IV that Kamino is either taken out, or their technology is destroyed. There is no mention of Kamino in the OT SE, and with all of the storm troopers looking and sounding different there has to be an explanation. Plus, if you had the ability to crank out armies in a few months time, why would you bother recruiting anyone? Something must happen to Kamino...and then the Spartti clones are created and go crazy...and then they start to recruit.

Also, I like to think that it makes Boba Fett cooler being the last surviving clone of Jango Fett.