You guys all seem to prefer the Chaps. I went with the pants. I figure if I remember to put the pants on before I go out into the bush in the morning, I'm protected for the day. I'd likely take chaps off during a break - or lunch - or for some loading work, then "just cut that last limb" without them. Won't be taking my pants off till I get home.
I like the pants cause they are always on, all one piece, and have no straps or other to get caught as I bash my way through the underbrush.
I also use a logger's helmet - that way I have the ear muffs and face shield with me all the time. Just last weekend I was cutting wood and got beaned by a dead branch from above - Made me glad I had the hardhat on. I was well back from the falling tree, but a limb on it brushed against a second limb on the tree I was next to, causing it to shake and freeing up a 6" x 3' stub to drop on my head. One in a million situtation - and the aim was perfect. I had a sore neck for a day or so, but no worse for wear. My 2 kids sitting on the tractor well out of the way thought it was pretty funny though! Of course it could have been very different.