Well, mostly benevolent - they don't seem above sacrificing the odd human or orbital if it meets the need of the greater good though.
The most interesting and evil manifestation of AI I think has to be the Shrike from Dan Simmons' Hyperion and by extension the TechnoCore which created it.
The most interesting and evil manifestation of AI I think has to be the Shrike from Dan Simmons' Hyperion and by extension the TechnoCore which created it.