"Lasciate ogne speranza, voi ch'intrate." 
Unfortunately this topic is a gigantic can of worms. If you have ever touched it on other forums, you already know there's plenty of debate yet very little agreement. Especially around the popular "GW scale" (which itself is highly variable), terms like 25mm, 28mm, 32mm, true, heroic, epic, eye level etc. become a sad mess. Then we have the artistic or technical exaggeration. Oh dear.
I suggest adding a gigantic disclaimer and then seeking cover. Because our toys are not proper scale models, the matter becomes highly unscientific and mostly driven by personal agendas. No scale guide can be more than a rough approximation today so you should state it clearly from the very beginning.
I see you're already fixing and html'ing the table. We can discuss the factual (

) matters when that's been done. Or maybe I'll just seek cover...