LED is much sharper than LCD and Plasma?

[nightrider1470]

Was in a local shop the other day and I could really notice the LED screens they seemed so much more brighter, but most of all sharper is this the case?

If so will defo make sure i go LED

 

[nightrider1470]

Ok so from reading through these posts am still not much the clearer which is better, I suppose thats because each technology offers different features etc.

I just want a really nice razor sharp image,with a 47"-55" screen for bluerays. should I go LCD plasma or LED ?.......... Confused to go 3D or not!

I have £900-£1200 to spend -