I have started using pull-middle resistors here and there where appropriate and realized I hadn't ever tried these in combination with two-input diode gates. I already make common use of forward biased diodes with a pull-down to make a Max Gate and reversed biased diodes with a pull-up to make a Min Gate. Using forward biased diodes with a pull-middle gives this truth table:

Using reverse biased diodes with a pull-middle gives this truth table:

Neither is of particular importance, but it's nice to keep that in my bag of tricks. The more gates I can make with fewer components the better. Sorry for the messy tables but not a lot of formatting options are available.