Echoing S_D's sentiment.  Everywhere I've tripped there are sites with no room for a big tent, but lots of room for 2-3 person tents.

Curious.  Is the larger tent desired for sleeping in or for bad weather being weather bound?  I hate tents for being weather bound.  Tarps are much better.  Can stand up.  Can look at something other than the dirty face of your tentmate.  Nothing like watching a storm roll in while under a well-pitched tarp next to the fire.  Also tents make the pitter-pat falling off trees after the storm is gone sound like it's still raining.

Tarps rule!  Tents suck!