Either wheel size will be ok. If you were touring around the world, I would say go with the 26" type.
If you are staying stateside, the 700 or even 27", built properly will work great for you.
I'm about your size and ride 700c 32spoke 3x handbuilt wheels with no problems what-so-ever!
These are NOT some box set of wheels, but hand built by a master wheelbuilder.
The 700 size will give you many more tires and sizes to pick from, but all will work.