Favorite Doctor Who alien race?

[Captain Kathryn]

Oh the cat people!!! They are cool. I love the episode "New Earth", it's a memorable one for me.

 

[P0sitr0nic]

Silurians.

 

[selina]

My favorite aliens are

1. Vashta Nerada
2. Oods
3. Silence.

In that order. Funny somehow that my favorite aliens are not really visible. Guess the own Imagination is still the best.

 

[Candlelight]

You forgot The Sea Devils as well.

They're weren't in that story, though you could argue their cousins were.