Arbor trolleys work great, they even do ok for prying rounds on like a hand truck. If you are hand feeding a chipper i can't possibly imagine anything better for the brush, and since it's not being drug in the ground you have way less raking at the end of the day. Their limitation is that with the exception of the rounds you have to lift the material to load it. Tweaked my back one day lifting a log up on it, so i welded up a log arch so i didn't have to lift stuff, works great for the logs or leaving the limb whole to feed into a bigger chipper, until it's too big to straddle, but then you got the arbor trolley.
Once the logs are to the street you then have to load them, not a small task. I got by a long time with a duct hoist i salvaged, you crank it up, push it over the truck/ trailer, then roll it off. It's all manual, but you're using rigging to do it. I also had a harbor freight truck crane that worked very well, just had to back up to the logs and you could load a pickup truck in a few minutes. Had to tie it into the frame and wired up an atv winch on it, not a possibility for everyone. If i didn't have that i would have likely rigged up a gantry crane type setup, or used another tree for loading with a boom rigged, posted that one here once, i think in my derrick crane thread. Chain falls work well (as a fitter we use them all the time), but little sticks and stuff like to get stuck in them so it's kinda annoying, basically gotta keep it really clean and they do well. Keeping the chain in a bucket is another trick, it'll pay out with minimal management, that's how we work on grating without getting it stuck continuously. Also size the fall for the expected load, a half ton fall works much faster than a 1 ton, which is faster than a 2 ton.