If we’re talking preferences only, then by all means metal.
But if all I have on hand is a plastic, then I’m perfectly content. Or a metal/plastic YYJ. Some days I’ll just choose to play plastics only.
Howerver, metals aren’t more “weighty”. It’s all about how they are designed. The YYJ Chaser is over 70 grams but has the weight where it needs it. Granted, the weight is added in the form of a metal washer, but it’s still essentially a plastic yoyo.
I could care less if I’m using my $8 PRoZ or a Chief or Arctic Circle, or anything in between and any material or cost. Fun is my only requirement.