As tight isn't opposed to aggressive - it's tight-loose and passive-aggressive (the most common way of describing poker players.)

Elhe and togni would end up in the tight-aggro group along with nep.. Loose aggro are probably me/shamanman (on the extreme end of loose).. tight passive player is Dwoggurd / lightmage, and loose passive (the most losing style) are the typical acolyte (not seeking out fights, but showing up to defend for raids unprepared, etc). But of course character build also matters - liches and ap's are built for tight play because the cost of deaths is so high, so if I ever played one obviously I would tighten up a bit.