Chog is used a lot in base capping. Great for vulching, but still whacked by ack and GVs a good deal. Tempest is a great plane, but tends to be flown very timidly by a lot of people. Same with the jet (comparatively high perk cost). The 163 is a small, agile fast, heavily armed, and usually attacking much larger, stable targets. I'd assume it has a better k/d due to the fact that it makes a few passes and lands. No prolonged furballing, which tends to end many flights of other plane types.