It all depends on where you are. In the interior of BC, butt and top grapples, tiny wood, small trucks, and side loading are common. On the coast, big wood, huge trucks, and line machines are more common. Line loaders with long or super snorkels can't be beat in many areas. The machine never has to leave the road, so the ground isn't turned to mush under the tracks. The big operations usually run a mix of grapple yarding, hoe-chucking, and occasionally even high lead. A line loader is often kept around for right-of-way wood, or for loading really big logs. Line loaders are becoming less common now, because the operators are all getting close to, or even past, retirement. Young guys have no interest in running something that actually takes some skill.
It's a shame, a good line loader guy will log cheaper and faster than a juicer in many places. The machines last longer, too. A few years ago, may 30+ year old TL-6's were still going strong in BC. As the operators retire, the machines usually go with them.