I think Marc Web did a great job building tension in the Richard Parker fight, but considering the big reveal for that whole sequence wound up being leaving a good bye message for Peter, it loses serious points. It was a well shot scene, and such a phyrric victory for both sides of the conflict would make a great ending to a whole movie, as a prologue it fails because it adds nothing to the actual story.
MOS's Jor-El v Zod fight set up themes and conflict for the rest of the film, and had a better ending in my opinion. Now, to argue with you guys who say there was no reason for the Jor-El fight, here's my counter-argument:
Joe-El wining the fight but dying at the end of the scene serves the two major purposes of reinforcing the reasoning behind Krypton having no evacuation and imprisoning Zod and Co. in its final moments, and supporting the claim Jor-El makes that their culture is effectively broken. For the former, Jor-El was having trouble getting the Council to understand him, and his death and Zod's rebellion put enough of a kabosh on his prediction of their end that the Council simply ignores him.
The latter is a point I think is often forgotten; Kryton's the prettiest, most well-organized failed state in history, and their entire genetic engineering plan has lead to guys who have some skills in their assigned area, but no adaptability and surprisingly huge flaws in their operation. The ruling Council commits planetary suicide, and can't do anything actually impressive with their leadership. The Sapphire guard stares at interlopers and gets shot instead of moving to defend their charges, and shows more competence at attacking Zod later then anything else. And the military is an inflexible and stubborn force that keeps losing.
Zod can't think of any answer that doesn't involve violence, intimidation, and immediate action. Faora brags about her evolutionary advantage when, in fact, Superman has that advantage and immediately starts beating her. And the entire group is outfought or outmanuvered by a scientist and mongrel refugee.
Though tying into Jor-El's skills, I like to think that means that at some point in the backstory for MOS, there was this moment.
Jor-El: "Alright, Lara, we must draw up an itinerary of goals to ensure our child's survival through our child."
Lara: "Correct. Item One; build a ship capable of inter-dimensional travel. Item Two; build a mode of inter dimensional travel."
Jor-El: "Item Three; discover a planet suitable for Kryptonians habitation by a young helpless child."
Lara: "Item Four; mother must learn the correct dietary habits and practices for healthy birth, father must learn how to protect young via Kryptonian Krav Maga-"
Jor-El: "-and pimped out boss suit of ass kicking! In Gold!"
Lara (rolls her eyes): "Very well, and Item Five..."
Jor-El: "Item Five?"
Lara (coughs): "...Sexual reproduction."
Awkward silence.