In the event that it is chosen, the creature will be a template, as the other monster templates in so many books. The size part is rather confusion, I admit.
I have chosen to include it in the size poll since it is one of the features rarely changed by templates. Another option would have been to include it in the HD poll, but I wanted to base that off the results of these first two polls.
I got it the first time you tried to explain it. For the record, if there is a tie breaker, don't write it as size templat but rather something similar to the following: