Aluminum or steel floor jack, which is better?

Aluminum jacks are dramatically lighter (often 30+ pounds less) and easier to wheel around or load into a trunk, but they typically cost more and can flex more under heavy loads. Steel jacks are heavier and cheaper, with a reputation among DIY reviewers for stability under trucks and SUVs. Reddit threads from r/harborfreight and r/Tools repeatedly note that hybrid aluminum/steel designs split the difference reasonably well.