I own a 2004 Nissan Armada, and Tried to start this morning to no avail.
Can you recommend a relacement with the most bang for the buck?

Go to Costco and buy a 3 year/100-month battery. Best deal on batteries I've seen.

Auto-Zone Duralast. CR rated it a best buy not too long ago. Got one myself. Livin' up to it's name so far. (4yrs old) with a 7 yr warr.