What’s the most important crew member?

Some people play with small med-kits, who do you think they should prioritize and why, if multiple crew members get injured?

I think for meds/heavies/tds:
1 Commander – view range and sixth sense are so important

2 Gunner – you need to hit, in my opinion it's worth to sacrifice DPM

3 Loader – DPM

4 driver

5 radio operator – usually doesn't have much use

Lights:
1 Commander – view range and sixth sense are so important

2 Driver – in lights you're dependent on mobility

3 radio operator – if you have "situational awareness " he is worth extra view range

4 Gunner – you need to hit, in my opinion it's worth to sacrifice DPM

5 Loader – DPM you shouldn't dependent on your own DPM in lights

Feel free to disagree, or to write you own ideas I'm really curious