ME1 - Who Do You Save and Why?

Yep save kirrahe apart from first time when I didn't know better.

Bomb Site - get to fight a Geth Prime. Also, it would make more sense to make sure the bomb is safe. Although flying the Normandy right up to an armed nuke does sound a little risky...

Whoever goes with Kirrahe on that mission - it makes more story sense that you get them all at once.

the one with the bomb. Why? Why not? It just happens that way in my playthroughs.

I have saved the one with Kirrahe a couple of times.

Unless I'm chasing minimal XP or want an easier fight, I save the one with the bomb. The XP potential there is exactly double that at the tower. I tried to add this tidbit of information to the Wiki but was reverted. (I was reasonably sure about the facts, so hopefully it was just my style that was poor.)

The one with Kirrahe's team, even if Kirrahe himself was dead.
For many of the reasons listed above and I think Shepard feels he/she would have an easier time with the Council if he/she saved the Salarians. Kirrahe's team are STG right? They're pretty important. Managing to save Kirrahe and his team while losing the human crew member who went with them just sounds horrible, I'm way too fond of Ash and Kaidan for that. Also, dying defending the bomb to the last to ensures I'm giving that crewmember the most heroic send off. I'm sure Shepard's letter to the Alenkos or Williamses made their loved ones sound heroic no matter what, but I personally find "died defending a crucial bomb" to sound more heroic than "died capturing a crucial gun", especially if everyone else in the team made it out ok. But I'm a wuss and a civilian wuss at that.

I go to the person with the bomb. (Ashley) Why? Because my Shepard would never let any harm come to Ashley. That and i just never go to the other team, always the bomb.

I send Kaidan with Kirrahe and left Ashley to guard the bomb. When I had to choose between them I chose Kaidan.

I guess there are two other ways you could play it: If you're a mission-focused Shepard, go to the bomb. If you're a Shepard who values lives more, save the one at the tower, as you can get the Salarians too.

However, there is the matter of the Salarians on the Normandy. I've always thought that maybe the teams got split up, and that's where the Normandy goes before the choice - to fetch the other team that's not pinned down by the AA gun.

However, I've started to make the decision spontaneously, without thinking about it beforehand: last time, I was all set to save Ashley, but at the final moment decided to save Kaidan because of tactical reasons for Noveria - Rachni are much easier to kill with Neural Shock.

Most of my Sheps are all for saving as many lives as possible, so I most often go save the person who's with Kirrahe. However, since they get saved anyway as long as you follow certain steps, now I like to consciously change things up a bit from time to time.

How else I'm going to see this cool scene?

After my first play-through I just cannot see how it is going to be about anything but gleefully killing Kaidan off so I will be free of him for the rest of the game.