If you want an autofocus one, there are only two choices: FA50/1.4 or F50/1.4. Of course Sigma got a nice 50/1.4 lens too, but that one is alot bigger and more expensive.
For manual focus one, there are too many choices. My suggestion is to go w/ the A50/1.4, M50/1.4, or K50/1.4. But those SMC Takumar ones are pretty nice too. There are quite some third part ones including a Zeiss ZK 50/1.4 in PK/A mount.
Actually there is no bad normal (50mm) lens, and it is true I think, after I've played many 50mm lenses
