4Runner as a tow vehicle

I'm considering an 06 Tundra 4x4 V8 Double Cab or an 06 4Runner 4x4 V8 as my next tow vehicle. I know based on the other thread that most feel that the Tundra is pretty solid. I am however considering the 4Runner because it's a bit smaller...easier to park...better gas mileage...I can lock up bikes in the back...etc. Would I be making a mistake going with the 4Runner? I'm towing an 05 SANTE 210....with 400-600 extra lbs of lead in the bow.

On Toyota's website...they show the 4Runner to have 7000lbs vs the Tundra's 6500lb towing capacity....weird!