Agreed with Coachz, Judders, ashcat_lt, and kirk1701.
And brainwreck: aliasing is the least of your concerns in mixes such as the ones you mentioned liking. Especially that Mission of Burma song. Those drums sound like someone popping bubble wrap.
You have to realize how bandwidth-limited these mixes are (and also how strong the mono image is), and how much that affects your perception of the "clarity" etc. (which is a subjective term). Try to avoid definining things too subjectively and focus on what you know you hear. Address that first. The rest is minor by comparison. I hear obvious differences, and I don't care about using very specific plugins to make up subtle differences (this is why I don't care about plugins that emulate specific hardware). When I want some analog-type sound, I decide what aspects I want and how much. With an all-analog workflow (especially on a reasonable budget) you didn't really have that choice.