I know this is more the UI category, but adding a window or something that allows you to see what ships you have selected would be very useful in tactical battles. Right now I have to do it all by memory and eye - which makes it hard to compose uniform fleets.
The ships you have selected should appear on the left side of the screen with white boxes around them.
Yes, but there is only limited distinction between those ships and the other ships at their respective systems. It's not always easy to catch all the ships. Also, you're forced to count each little icon to see how many ships you have. Having a little window at the bottom of the screen similar to the one seen for planet overviews like:
12x Heavy Frigate
1x Kor Battleship
2x Bomber
3x Scout Frigate
would be immensely helpful. Also, as I said before, it's never very clear where all those ships are when zoomed out past mesh/icon level. Yes, there are little white blips on the left of the screen and sometimes over the planet itself, but you have to be
very tuned into the interface to catch them all. Outlining the planets or marking them with arrows when you have a ship currently selected in their orbit or jumpint to them would be a wonderful help.