Ah, rivalry is very much alive and well!

During one of recend Linux Expos or something like that there was a huge paintball battle (more than 100 people) between vi and emacs fans. Referees (outsiders) we baffled both at players' enthusiasm and design of their T-shirts; they ended up calling them 'monkeys' and 'cows' (T-shirts we designed, obviously, after O'R's books).

BTW, Bill Joy's main design goal was obviously minimum number of keystrokes - which other editor has six or seven ways of replacing a few characters, so that one can save a keystoke or two? (I sometimes think that Rithcie et al had similar design goal )