In which it must be option 3,
In which we are reminded that, Orlando Bloom and opinions about the poofiness of elves aside, Legolas *is* an immortal warrior and scout who managed to survive in Mirkwood, and therefore is accustomed to things suddenly trying to bite him.
Why yes, Jareth's magic has gotten stronger... and vaguely reminiscent of someone else, hasn't he...
Jareth belongs to Henson, Lucas, and Bowie.
Legolas belongs to Tolkien.