At the end of the day you never know with shoes.
Appart from the whole thing being subjective, the feeling of a shoe can change depending on time and type of usage.
I know that Wilsons and Heads have a wide form if this interests you.
Vapors (used by Chris Edwards) and 2k10 - theoretically - are not meant for people with wide feet.
Others might want to confirm it.
One reason why I love tennis is because it's a life lab. Really.