If accurate, I found the following site that list most of the useful information about various A mount lens including a few of the Sony follow on. The 50 1.4 in Minolta and Sony version all had 7 elements in 6 elements. There were some changes to the build quality, metal gave way to plastic.
lens-db.com
There's another Sony 50mm f/1.4 available that's nothing to do with Minolta , it's the
Sony Carl Zeiss 50mm F1.4 ZA SSM Planar T*
https://www.dyxum.com/lenses/Sony-Carl-Zeiss-50mm-F1.4-ZA-SSM-Planar-T*_lens693.html
Image quality is apparently much better than the Minolta and Sony rebranded version , naturally it's much dearer .
it's an SSM lens , so the AF only functions with compatible cameras such as the Dynax 7 onwards or SSM/ADI upgraded Dynax 9's .
I'm often tempted to get one , but still carry on using my Sony branded 50mm f/1.4 .
I'm not sure I'd prefer the images it'd produce as it's designed for shooting MTF charts , and it's often the flaws of older lenses that give them the character that's preferred .
@ the O.P .
Regards the Minolta 50mm lenses , assuming you don't need a macro , you've got the f/1.7 and f/1.4 versions .
Typically the f/1.7 has better image quality , but if you intend shooting at f/1.4 , that's another thing .
You might want to consider the Minolta 24-85mm RS as a decent walk around lens , I've used one for many years along with the 28-105mm RS , depending on if I'm likely to be wanting a longer or wider F/L .
The 70-210mm f/4 or 80-200mm F/2.8 APO G depending on budget .
If it's prime lenses your wanting , depending on what your preferences are I use Minolta 24mm f/2.8 , 28mm f/2 , 50mm f/1.4 and either the 100mm f/2.8 macro or 135mm f/2.8 .
But it depends on what I'm doing and where I'm going .
I've got all the lenses between 16mm and 500mm in primes and between 12mm and 400mm in zooms , but what I use on any given day depends on the needs of the day .
without knowing your needs and preferences , it's hard to make suggestions .