There's no need to wait until the start of the regular season to watch the 49ers and Seattle Seahawks compete.

With the new league year just four days old, the top two teams in the NFC West -- and, perhaps, the NFC -- are providing some interesting comparisons on paper.

Pete Carroll's team acquired wide receiver Percy Harvin in a trade -- in effect, asking Jim Harbaugh, "What's your deal?" Later that day, Harbaugh's 49ers dealt for wide receiver Anquan Boldin.