Which is better, OEM or Compatible Toner Cartridge?

Which is better, OEM or  Compatible Toner Cartridge?
Here are 2 identical HP laser printers and the test begins.
First Wobela Toner Cartridges
2nd with OEM Toner Cartridges
Now print the black and white file, same effect.
Now printing color pictures and texts, there is color difference, but the naked eye is not very obvious
Print full-color pictures, only the red is slightly different.
Wobela toner cartridge has relatively good sealing performance and does not leak powder.