Who do you most like to bring on an away team?

So, I know there are a million different ways to build and gear an away team and there is no perfect team but with the featured episode replay going on now that let's us get the Breen and Reman Boffs again, I started thinking about switching my team around.

I'm curious which of the unique Boffs do you feel work well on an away team? I'm sure skills and gear are way more important but are there any traits you find especially useful (especially in the hands of the AI). For example, in my experience the Jem'Hadar looks good but in practice he tends to go into stealth and then waits a long time before attacking, basically removing himself from the fight.

Here are a few off the top of my head, which ones do you find to work well and why?

Jem'Hadar - Tac
Breen - Tac
Elisa / K'Gan / Tovan - Tac
Voth - Sci
Hierarchy - Sci
Reman - Sci
Liberated Borg - Sci
Kobali - Eng
Photonic - Eng

Thanks for your input