Boy, I've got too many to list out in detail like you did. I would have to disagree with your saying that trimmers are easier than chainsaws and blower. My expeirences are the opposite. Chainsaw ans blowers are typically designed to run full throttle most of the time, so they usually come with a bigger carb. Trimmer OEM carbs have tiny venturis and so need replacement or mods.

As for having to cut extraneous appendages off the crankcase, trimmers and blowers can be just as bad. Smaller chainsaws are typically much better in this regard - open up the plastic cases and a read-to-use short block practically falls in your hands. Big chainsaws likely have the engine crankcase cast as part of the case and need more work.