Best? What factors are you considering?
Viewing angle?
Response time?
Color accuracy?
If all of the above, I'd get an S-IPS/S-PVA with Overdrive, of which the L90D+ is not. However that doesn't 'exclude' it from having those factors good in your opinion so you kinda have to see it. There is better than the L90D+ though. Right now the VP191B is damned good (make sure you get the <8ms. one, not the 25ms.)!