Derailleur Gears Vs Hub Gears

Its very premature to publish such authoritative topics like these. But this information helped me to get rid of this very big confusion that I was having regarding what gear system to choose. Here, I have tabulated whatever information I have collected regarding them.

Particulars	Derailleur Gears	Hub Gears
Maintenance	High on effort t and cost(because of open system)	Less on effort and cost(closed system protects it from dust, water and physical trauma)
Chain	More flexible, less durable	Wider stronger and enables effective force transmission
Chain Path	Higher and more flexions due to two pulley wheels giving additive friction	Smaller chain path with no pulleys.
Grease tattoos on trousers(A big concern for work-commuters)	Frequent since the drivetrain is exposed	As the drivetrain is enclosed this issue is almost unheard of.
Sturdiness	Fragile	Sturdy
Ease of use	Complex due to two shifters and issues of ratio overlap and cross-chaining.	Only one shifter present making it very user friendly and hassle free, a benefit for beginners and in high-traffic.
Shifting while pedaling	Not possible in most models	Possible (important for city rides and trails)
Coaster brakes	Usually absent	Present. Effective in rain and snow. Very less maintenance. Complex and costly repairs. Inefficient heat dissipation. Not suitable for long descents. Longer response time and chances of skidding.
Shifting force required	High	Low
Gear Ratio	High overall gear ratios	High ratio present only in top models like Rohloff Speedhub
Weight	Very light	Heavy
Cost	Cheaper	Very expensive
System mechanics	Simple and can be easily repaired	Complex system; complex repairs
Efficiency	98%	92%
Rear wheel removal(think of a flat while touring)	Piece of cake	Difficult
Best suitable for	Go Fast riders (Performance, speed, sports)	Leisure Riders (Commuting, recreational rides)