[Swiss1000]

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My code is not set up to handle B# as a valid chord I believe, so that's something that would have to change, but it definitely creates a lot of annoying problems, as it's still not clear to me when I would use B# versus C in all situations. 
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Hi Mike, it's just my 2c worth, but I wouldn't necessarily do that.

While erhe is technically correct (and I agree with much of what they have presented), it's my observation that such constructs usually aren't helpful to someone sight reading, or otherwise not very familiar with, a piece.  This is especially true for weekend warriors.

Where the enharmonic equivalent is a sharp or flat (E.G. C# instead of Db or vice versa) then it usually makes little practical difference for the player whereas B# instead of C, or Fb instead of E etc. commonly takes more time to process and can thus more strongly impact the flow of a performance*.  Of course this isn't necessarily true of every player as some are more analytical than others, yet ease of interpretation usually equates to a faster response.

You are not going to be able to please everyone.  It seems to me the best choice is to please the majority as well as you can.

* some pedants may disagree 

I agree, pedantry is a luxury for poor minds. And in some situations, you should have to say Cb for musical pedantry... ("All The Think you Are" by exemple)

It is usual to say Ab in place of G# despite the key, and all musicians aggree and don't have problems with that...