TN/VA:
+ Cheap.
+ Fast.
-Cant be found in as high resolutions as IPS and PLS.
These are pretty much the baseline, as your standard monitor is typically a TN
120Hz TN:
+Very fast, can refresh the image twice as fast as the other panels allowing an FPS of up to 120 to be displayed.
- Expensive compared to normal TN and 1080p IPS monitors.
- Limited to 1920x1080.
IPS:
+ Superior Colour reproduction than TN.
+ Wider Viewing angles than TN.
+ Typically can be found in higher resolutions than TN.
+ Believe it or not, but 1440p IPS panels can overclock the refresh rate. Not much though, typically to ~65Hz before it stops.
- Response times are slower than TN.
- More expensive than TN.
PLS:
+ Typical IPS benefits pushed a bit further
+ Faster...