If you find that you prefer the handling of 700xWide wheels, then by all 
means ride them.  As you said, there are many tire choices.  Preference and 
interpretation of handling play a huge role.  The ways in which a smaller 
diameter wheel is objectively and measurably superior are as follows:

For a given rim extrusion, the smaller you make the rim, the lighter and 
stronger it is.  700c, being the biggest common diameter, is the weakest 
and heaviest of all choices for a particular extrusion.  If you never have 
wheel strength issues and are not a weight weenie, then wheel weight and 
wheel strength don't matter.  If you take lighter and stronger to their 
logical conclusion and run a bike with 12" wheels, you'll end up with a 
weird handling bike.  Shorter cranks are lighter and stronger, too, but 
people don't choose 140mm crank arms just because they are lighter and 
stronger.  Still the fact remains, smaller is bothlighter and stronger.  

For a given width tire with the same casing and tread, the smaller diameter 
is lighter.  

For a given second moment of inertia, you can run a wider tire on the 
smaller diameter rim.  A wider tire is safer, faster, stronger and more 
comfortable.  If you already like wide tires on the biggest diameter 
wheels, and don't care about second moment of inertia, then it doesn't 
matter.  

If you are a 'not tall' rider and insist on 700xWide  wheels, it's 
challenging to design a frame without TCO (toe clip overlap).  If you never 
ride slow and never turn sharply, TCO is not a big deal.  If you run flat 
bars, TCO is easy to avoid by designing the frame with a long front center. 
 Some riders absolutely refuse to tolerate TCO.  Others don't care at all. 
  

 

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