Why choose Keeler over Heath for a position that Heath has been developing for 2 years in? If you're going to debut Keeler, it wouldn't be as a 2nd ruck where he'd get bodied by any mature AFL body. Heath at least has come up against these types in the VFL (Stanley, Naismith etc)
I guess I see a future where Keels is a natural forward for us who gives a chop out in the ruck. Considering he's now being trained & played in defence, I'm already completely wrong.
As for Heath, I see him as a ruck who will rest down forward so it's more role based.
I guess I'm also somewhat seduced by the natural excitement and flair that Keels brings, I desperately want him to succeed. Heath in my mind is a bit of project who is developing well. It's not rational, just prefer Keels.