Tip o' the keyboard to bink, who sent me these 21st century Dr Who pics and pointed out the differences between them and the old Dr Who and Star Trek.
The design signifiers are the opposite of the ones used in Kirk & Spock's Star Trek world--past and present.
(The later Star Trek series Deep Space 9 and ST: Enterprise vary this formula, but they are not Kirk's world.)
BELOW: The bad guys, the daleks, are the ones with the clean, mechanistic design.
BELOW: While the TARDIS, Dr Who's good-guy ship, is the cluttered, animalistic one. Rather steampunk, with its ornate Victorianish high-tech gadgetry.