I also think there are too many of these to count, so let's say I hate them all, mainly Zoologist, and cross them off besides the ones I do like.
Astronaut- really good idea, really god design. I don't have much to say about any Scientists, and I'm trying to rush through this, as you can see. I have school which is just now becoming overwhelming for me.
Marine Biologist- there's always something about water variants that I just really like. This one will always have a place in my heart, and it's just great. Probably the only close ranged variant I actually like.
Physician- I always liked this one way better than most. I just love how great it is.