Replying to You have 3 lenses from now to the end of your life.

Which three will you pick? Focusing more on DSLR/SLR's, but other's are suitable.

My Selection (Canon):
EF 14mm f/2.8L II USM (Wide)

EF 24-105mm f/4L IS USM (Standard, I have this lens and love it.)

EF 400mm f/4L DO IS USM (Tele. I wish I had the money for this.)

If said lens breaks or wears down, you get a replacement. No changing. And on a body of your choice.

Have at it M+A.