How are you handling drips? I have always used picnic faucets on the kegs in my brewing refrigerator because they can be shaken to empty the faucet at the end of a pour.
I am with you on smaller kegs. I have been using 3-gallon strap handle AEB kegs for the last few years for 3-gallon batches. However, I recently decided to switch over to using 2.5-gallon rubber handle AEB kegs for several reasons, not the least of which being that 3-gallons is still too big for a standard batch size.