I love the original Halo trilogy, but DOOM marine is winning that fight every time. If they overheard a grunt calling Chief a demon they'd see red until it was done.

At the time it was made Halo was extremely popular,arguably at its peak.
Back then you had the Original trilogy and Reach. Doom's last game was Doom 3 and had overall mixed opinions,also the series didn't have a new game for a while.
So I guess they were biased at the time.(also they've changed the thumbnail with the Doomslayer,which is inaccurate just like the fight itself)

Btw I would love a DLC where you get to fight the Titan.