A 3-round or 5-round mag is just fine for me for hunting; enough capacity and little or no impact on handling.
A 10- or 20- or 30-round mag is huge fun for plinking...as long as it actually holds 10, 20 or 30 rounds.
 
Like any good Canuckistani, there  is  little that I detest  quite so much as a neutered "high-cap" mag that holds 5   or 10  but looks like it  could, and originally did, hold far more if my gummint  didn't hate me.
But my personal WTF-meter really redlines when I  see folks purposely buying faux-high-cap magazines because they think they  look cool.  All the awkward handling of a 30 "banana" mag or even a single- or dual-drum mag...pinned  to 5-round  capacity; the worst of both worlds.  To my eye, that horrible little silver dot...the rivet....visible just below the receiver, but with a huge  gaping empty metal magazine extending far beyond it...isn't cool; it's embarrassing, a constant reminder of what it's like to own guns in this country.