This will be completely random, but what the hell, it's been on my mind for a while (Halo is always on my mind
)
After having long thoughts while driving home from my University about Halo's campaigns and the story each of them told, I've come to the conclusion that Master Chief is THE best character in the Halo series for storytelling. As a whole, I love the Chief and the character he brings him with, but in terms of storytelling, he's much stronger. The baggage he brings with him range from Forerunner back-stories, Blue Team during the events of Reach (and him on the MAC Cannon) and the Covenant-Flood-UNSC three-way story arc.
Another great aspect about him is his leadership. You really do feel like a badass, like someone who the UNSC and all the other supporting characters in the game need during the events of CE, Halo 2 and Halo 3. You're literally strong and in control. With characters like The Rookie and Noble Six, not so much.
When Halo 3 came out, I was still enjoying the Chief's presence and playing as him, although, I was a little excited at the idea of being in someone else's shoes for a new Halo game when Halo 3: ODST was announced.
Then Halo 3: ODST and Reach came out and my feeling completely changed. You became an expendable character; "Just another guy". You were weaker, slower, didn't say as much, if anything, as the Chief, not a leader and simply a replacement for a previous character in your specific squad that died.
In Saints Row 1, you started out as just an average gang recruit and had no dialogue whatsoever in the game. I thought that was boring and uneventful. I understood the premise behind it considering it was the first game in the series and all, but it was still boring none the less. Then came Saints Row 2 where your character had dialogue, had attitude and best of all, became a big name in the Third Street Saints gang. You became somebody.
I'm very excited at the prospects of playing as the Chief again because of the heavy fiction that his character always brings to the table (although it's going to be tough to top the story fiction that was present in Halo 2 with the Flood, the Arbiter back-story, the Prophets, the Brutes' rising, the Elites revolting, etc...)
tl;dr: I love Master Chief and can't wait to play as him again.