Personally, I'd rather have them in my deck than not as they are an effective damage sponge... but that does beg the question - why would I ever use them for the 10 attack when there are better ways to do it.
Ancient of Lore on the other hand... I won't even try and argue those are not one of the best cards for druids - they flat out are. But dang... it sure is nice to have that damage sponge of 10 life (assuming it doesn't get hard removed...)
So, AoW, truly not worth it? If not, then, what is a better choice?