I've used both and like both, but not the cycling issues with the 1100 with light loads. I currently have an 11-87. It is not "self-cleaning", I get plenty of carbon out of the gas action after a long trap session.

For a multi barrel gun I'd still do the 11-87. For upland birds only, I might save up a bit longer and get one of the new inertia Benelli's and be done with the cleaning job.