LaMelo has been better than Lonzo at every age. Not even all that close. He is also bigger, which always meant he was going to be at least a good NBA player. I definitely would have taken him 1 as I always felt he had the highest ceiling of anyone in the draft.
As for Australia he averaged 17/7.4/6.8 (plus 1.7 steals) in 12 games before he got hurt. He was starting to really turn it on as well before the injury and even had back to back triple doubles one of which he scored 32 points. Didn't shoot all that well at only like 38%, but the talent was clearly apparent.