Best in Star Trek - Tournament Bracket, Part 1

Who's the best character in Star Trek? Any fan forum can debate endlessly about it - but the trio has decided to use tournament brackets (aka March Madness) to winnow down the "best" characters by their jobs. In this first entry, we look at who is the "Best Engineer" and who is the best "Tactical/Security" person? We begin with an "elite eight" from across the entire Trek franchise - leading so some lopsided match-ups, some surprising upsets, and some real 50/50 decisions. Let us know if you agree with our determinations - and find out who's the "best"!