The 40-150 is quite excellent for a kit lense, sharp and not a total dog in speed. It has a slightly cool color cast. AF isn't necessarily going to happen with the TC on the 40-150 due to the loss stops.
The 50-200 is even sharper, faster, weatherproof, with slightly better(more accurate) color/contrast. The TC is of good quality, although a bit expensive. It'll lose your weatherproofing unfortunately - but everything I've seen/read shows that it stays sharp as long as you can freeze the action with the slightly slower aperture.
I find the 11-22 to be a fantastic lense. Weather sealed and nice angle of view with really no perceptable distortion or fringing.
My 8mm will fringe in high contrast environments but what fisheye won't when pushed? Otherwise, its a fantastic piece of glass with 180* view.