There's a interview with John Romero up on BondeLAN, which apart from the interview is in a foreign language (some Scandanavian one, I can't tell). The interview is pretty short, and while it covers some requisite Daikatana stuff, it also has some Doom questions thrown in for good measure. Such as:
Now a little "bonus" question, whats your favourite map, monster and weapon from the Doom series?
JR: My favorite map is MAP 17 "The Tenements" from DOOM2, my favorite monster is the Baron of Hell, and my favorite weapon is the Rocket Launcher.
E1M5, the imp, and the plasma rifle for me.