These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Wordof God claims that they were aiming for a younger voice to match Logan's younger looking Hugh Jackman-ish design rather than his traditional look but retained Blum as Logan on the X-Men story.
Subverted by the Hungarian dub of Iron Man. Tony's voiced by the same actor as in the movies (as is generally every character that appeared in movie adaptations), but his performance is so different, lacking all the slick charm, that some thought they had replaced him with an untalented no-name.