I think the ranking system is pretty well balanced, actually.
The "furballers" tend to score highly in K/T. Therefore the .. ok... I don't want to call them cherrypickers so I need to think of a better name. Anyway, they take a hit in the competition for the "K/T" rank.
The... others... tend to score very well in K/D. So, the "furballers" tend to take a hit in the competition for K/D.
K/S and accuracy are the other two categories.. both sets have an equal chance to score well here. If I die every sortie, but take 4 guys out in 20 minutes I'll have a good K/S, and a good K/T. If this happens every sortie, my K/D will also be around 4, which is good but not stellar in the K/D competition.
If a ... other... kills 4 guys a sortie, but his sorties last for an hour and he always lands, then he will have a good K/S, an atrocious K/T, and a stellar K/D.
Accuracy.. well, how well you shoot determines that, "flying style" has very little to do with it.
Points is a catchall category to keep someone who has one great sortie from skewing the rank to much, neither style is postively or negatively affected by that, it is purely a function of how much time you spend in the game.
Incidentally, my stats are usually close to what I give for a "furballer" example, although I'm somewhat more cautious than the really agressive furballers. Mostly a function of plane choice, I think.