My understanding of the spells are as follows
Consume Flesh | Devour | Winner | |
Targeting | Can choose which wounds you do (and don't) want healed | Heals worst wounds first | CF |
Effect | Appears to outright remove wounds without creating scars | Heals wounds (making scars), then heals those scars if you have power for it | CF |
Range | Can only heal one "part" at a time | If you have a bunch of internal/external scars, Devour will reach up to four | Devour |
Need | CF is penalized if the area you want to heal is too damaged on the corpse | Devour don't care | Devour |
Difficulty / Ease to Cast | Basic | Esoteric | CF |
Spite | Decimates the area you're healing on the target | Everything explodes | Devour |
As it stands, I think CF is better in all cases except two:
1) When you're using herbs in tandem with consuming corpses so you need scar cleanup more than wound cleanup
2) When you're lazy and don't want to target specific parts and/or makes sure specific parts don't explode when you're killing what you want to eat
I think Devour's biggest weakness is that it creates scars that it then has to heal. This means that if your devour cast isn't strong enough, you'll be left with a [smaller] wound plus a [new/bigger] scar vs CF's just a smaller wound. Beyond that, the fact that it can heal multiple "targets" rarely sees the light of day because one body part is essentially four targets itself: the initial internal/external wound and the following internal/external scars.
What could give Devour some more "teeth":
1) Remove the scar creation aspect, so it can heal up to four "true" targets. In most cases this will be two body parts per heal, since there are generally still internal/external with every body part's injury.
2) Increase how many targets it can hit. Maybe raise the bar on how many spots it can target at once.
How to keep CF's own "teeth" and prevent it from being seen as the poor man's Devour:
1) Cap how much devour can heal per target in relation to expanding how many locations it can heal at once. Make devour the spell of choice when wanting to remove multiple cuts/bruises and CF the spell of choice when wanting to remove one specific big injury.
How Devour will be "different" than Heal, which also currently has a 4 target max cap:
1) Heal isn't capped in its power, so it could arguably still do heavy recovery to a specific wound (similar to CF!). Devour's strength would be reduced while its range gets expanded, which would help justify it being able to do what Heal isn't.
I would love to use CF when I have a notable wound or just one or two minor blemishes to clean up, and Devour when I'm beat up all over from a day of hunting but lack any notable wounds. In a perfect situation, if post-battle I have a bunch of minor dings and one or two bad spots, I'd use CF to quickly triage the bad spots and Devour to clean up the minor blemishes.
Uzmam! The Chairman will NOT be pleased to know you're trying to build outside of approved zones. I'd hate for you to be charged the taxes needed to have this place re-zoned. Head for the manor if you're feeling creative.