Just a matrix
Remember: knowing the G2G response time is useless without knowing the input delay. TV's and the auto-contrast displays can have really bad input delays!
Aspect contrast, G2G response, input delay, viewing angle horizontal, viewing angle vertical, blacks
TN old 1:400, 5ms, 0ms, reasonable, bad, bad
TN new 1:800, 2ms, 0ms, good, bad, reasonable
PVA old 1:700, 20ms, 0ms, great, good, good
SPVA new 1:1300, 8ms, 16ms, excellent, great, excellent
IPS old 1:500, 16ms, 0ms, excellent, great, good
S-IPS new 1:1000, 8ms, 16ms, excellent, great, good
To improve G2G response, the displays with PVA/IPS need to calculate the difference of 2 frames. So better G2G response is eleminated by the prediction algoritm.
resume
Buy TN if you are on budget and want fast response. Buy SPVA/SIPS if you want to mount vertical, want the best image, or play many black-background classics.