Are Minolta and Sony Digital Camera Lenses Comparable, and who makes the best lenses for a sony camera?

Answer 1

Minolta AF lenses and Sony Alpha lenses both share the Minolta AF mount.

For a Sony camera, your best lenses will be the Konica/Minolta or Sony-branded ones, but there are lenses from third-pary manufacturers which may not have a Sony counterpart and thus, would potentially be of interest to you.

Answer 2

Every Minolta MAXXUM AF lens made since 1985 will mount to the Sony Alpha. There is an adapter available to mount the older MC/MD manual focus lenses, should you want.