Filter criteria for matching properties

[ZachKfare]

I think it would help segmentation and personalization tremendously, if we could filter by properties that match.
For example, I want to personalize an email with First Name - the problem is: many first names in my database are the company name or the email address. So the following branch in a workflow could solve this:
IF First Name matches Company Name or Email Addresss, THEN send this other version of the email where I don't insert a First Name Personalization token.

[cooperelias]

What about if you create a custom equation calculated property that is true or false based on your condition(s)? Then you could branch based on that property. Here is a screenshot of a formula that seems like it should work:

And here's that formula:

if(lowercase([properties.firstname]) == lowercase([properties.email]), true, false)