(in order of occurrence, not annoyance)
People that begin everything they say with, "I'll tell ya what..." or "Actually..."
People who eagerly wait for their turn to speak and can't listen to anything someone else says.
People who have to relate their personal experiences to everything. It is especially bad to witness a conversation between several people with this annoying habit. Every sentence begins with, "Well I blah blah.."
Bear Grylls god I hate him. In the few episodes I have seen he has killed random animals for no reason. He goes out to these places with a full camera crew and then pretends he has to eat a 50 year old turtle to "survive."
Hummers and the people who drive them.
The sounds people make when eating.