yup this exactly. a few of my skier friends know to always get on my left side in the lift line if theyre riding with me(im regular), its nice. if you stick to this rule, and every snowboarder you ride up with will be happy with you whether they realize it or not.
Never knew they had a preference. All I know is 90% of the snowboarders at my hill are noobs and I have to make sure I don't become entangled in their board when they fall getting off the lift.