I like Avenged Sevenfold...I really don't care what everyone else thinks about them, but they are a talented band, and the lead singer is really good. Screaming, sure I like it. I really like certain songs that Brandon Boyd from Incubus screams in. I think that's the lead singer's name.
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"I suggest we learn to love ourselves before it's made illegal." - Incubus
If you're talking about human-sounding screaming in a good ol' rock tune, I don't mind it at all. But I really really really hate that weird sucking-in-as-you-scream thing that I assume is what you're talking about.
All the new "radio bands" that think they are hardcore do that. Linkin Park annoys the crap out of me when they do it. I don't like all screaming in general, just the loud pitch screeching that bands do more often now. They literally just try to scream at the top of their lungs for whatever reason. I don't get it....