I'm strangely fascinated with Frigates, and how much they can hold in terms of troops, weapons, vehicles, and other items.
After seeing how much In Amber Clad did in Halo 2 on Delta Halo, and how much we got out of Forward Unto Dawn in Halo 3, I took a liking to the ships.
[Edited on 08.03.2011 4:54 AM PDT]